Jump Starter SJ1332

Schumacher Jump Starter SJ1332

The Schumacher SJ1332 Jump Starter and DC Power Source is a portable power station designed to jump-start vehicles with 12V lead-acid batteries, power electrical accessories, inflate tires and other items, and provide emergency lighting.

The unit features a sealed, maintenance-free AGM lead-acid battery, a 200W AC power converter, two 120V AC outlets, two 12V DC accessory outlets, a 5V USB charging port, and a built-in air compressor rated up to 150 PSI.

The SJ1332 also includes a high-flow inflator and deflator for inflatable products, an integrated work light, and a digital display that shows the internal battery charge percentage.

The power station can be recharged through a 120V AC electrical outlet using a suitable extension cord. It also supports charging from a vehicle’s 12V accessory outlet using an optional male-to-male charging cable.

The SJ1332 is intended for portable power applications, vehicle emergencies, camping, fishing trips, and temporary power needs. It must be operated within its electrical output limits and maintained with regular battery charging.

Product Features

The Schumacher SJ1332 includes the following features:

• Portable 12V vehicle jump starter.
• Built-in sealed AGM lead-acid battery.
• Digital battery charge percentage display.
• Two 12V DC accessory outlets.
• Maximum combined DC output of 20A.
• USB port with 5V DC, 2A output.
• Two 120V AC power outlets.
• 200W continuous AC power converter.
• 400W peak AC surge capacity.
• Modified sine wave AC output.
• Built-in air compressor.
• Maximum air compressor pressure of 150 PSI.
• Compressor pressure gauge.
• High-flow inflator.
• High-flow deflator.
• Inflator hose and adapters.
• Built-in work light.
• Integrated positive and negative battery clamps.
• Automatic AC battery maintenance after charging.
• Optional vehicle charging while driving.
• Built-in compressor thermal protection.
• Portable housing with cable and accessory storage.

Technical Specifications

Parts and Components

The Schumacher SJ1332 combines a jump starter, power converter, air compressor, inflator, deflator, and work light in one portable unit.

Component Identification

Battery Clamps

The unit includes red positive and black negative battery clamps.

These clamps are used for jump-starting a compatible vehicle.

The Jump Start/USB switch must remain OFF when the clamps are not being used.

Digital Display

The digital display presents different information depending on the operating function.

Compressor and Inflation Connections

The air compressor includes a pressure gauge and compressor hose for inflation.

The high-flow inflator and deflator use the corrugated inflator hose and the corresponding ports on the housing.

Important Safety Instructions

WARNING: Risk of explosive gases, electrical shock, fire, serious injury, or death.

Working near a lead-acid battery can be dangerous because batteries produce explosive gases during normal operation.

All safety instructions must be followed before connecting, charging, or operating the SJ1332.

General Safety Precautions

• Keep the jump starter out of reach of children.
• Do not disassemble the unit.
• Have repairs performed by a qualified service professional.
• Never jump-start a vehicle while the internal battery is charging.
• Do not recharge the unit using a damaged extension cord.
• Keep the unit properly ventilated during charging.
• Do not place the unit on flammable materials such as carpets, upholstery, paper, or cardboard.
• Position the jump starter as far from the vehicle battery as its cables allow.
• Do not expose the unit to rain or snow.
• Never attempt to jump-start a frozen battery.
• Do not place the unit directly above the battery being jumped.
• Never allow the battery clamps to touch each other or the same metal surface.
• Use only attachments recommended or sold by Schumacher Electric Corporation.
• Do not operate a damaged unit.
• Do not use the SJ1332 as a permanent replacement for a vehicle battery.

Vehicle Battery Compatibility

The SJ1332 is designed for jump-starting lead-acid batteries in vehicles, boats, and garden tractors equipped with a 12V DC battery system.

It must not be used to jump-start household dry-cell batteries or incompatible battery systems.

Personal Safety Precautions

When working near a lead-acid battery:

1. Wear complete eye protection and protective clothing.
2. Have another person nearby who can assist in an emergency.
3. Keep fresh water, soap, and baking soda available.
4. Remove metal jewelry, including rings, bracelets, watches, and necklaces.
5. Keep cigarettes, flames, and sparks away from the battery.
6. Avoid dropping metal objects onto the battery terminals.
7. Follow the safety precautions supplied by the vehicle and battery manufacturers.

Battery Acid Safety

Battery acid can cause severe chemical burns and eye injuries.

If battery acid contacts the skin or clothing, immediately wash the affected area with soap and water and obtain medical attention.

If acid enters the eyes, flush immediately with water for at least 10 minutes and obtain medical attention.

Battery acid spills must be thoroughly neutralized with baking soda before cleanup.

Restrictions on AC Power Use

The SJ1332 power converter must not be used to power life-support devices or systems.

A failure of the converter may cause connected life-support equipment to stop functioning or may affect its safety.

Before First Use

The internal battery must be fully charged before using the power station.

Preparing the Power Station

1. Remove the unit and accessories from the packaging.
2. Inspect the battery clamps, cables, compressor hose, and connections for damage.
3. Position the power station on a stable, non-flammable surface.
4. Make sure the Jump Start/USB and Converter switches are OFF.
5. Charge the internal battery using the specified AC charging method.
6. Press the Display button to check the battery percentage.
7. Confirm that the battery reaches 100% before normal use.

Important: Charge the internal battery immediately after purchase, after every use, and every 30 days to maintain battery performance.

How to Check the Internal Battery Charge Level

The SJ1332 uses a digital display to show the internal battery charge percentage.

Checking Battery Percentage

1. Locate the Display button on the front of the unit.
2. Press the Display button.
3. Read the battery charge percentage shown on the screen.
4. Recharge the unit if the display shows less than 100%.

The manufacturer recommends keeping the internal battery fully charged.

Battery Percentage Accuracy

For the most accurate reading, the jump starter should be disconnected from charging sources and powered devices for a few hours before checking the battery percentage.

How to Charge the Schumacher SJ1332 Using AC Power

The internal battery can be charged using a suitable extension cord connected to a 120V AC electrical outlet.

An extension cord is required and is not included.

AC Charging Instructions

1. Locate the charger port on the back of the jump starter.
2. Connect a suitable extension cord to the charger port.
3. Plug the other end into a 120V AC wall outlet.
4. Confirm that the green LED on the rear of the unit is illuminated.
5. Press the Display button to monitor charging progress.
6. Allow the internal battery to charge.
7. When charging is complete, the display shows 100.
8. The charger automatically enters maintain mode after the battery is fully charged.

AC Charging Time

A complete charge may take up to 72 hours.

AC Charging Indicators

Automatic Maintain Mode

When the internal battery reaches full charge, the charger automatically switches to maintain mode.

This mode maintains the battery at full charge without damaging it during normal AC charging.

AC Charging Safety

• Use only a suitable extension cord.
• Do not use a damaged extension cord.
• Keep the unit properly ventilated.
• Do not use the jump-start function while charging.
• Recharge as soon as possible after each use.

How to Charge the SJ1332 While Driving

The SJ1332 supports charging through a vehicle’s 12V accessory outlet using an optional male-to-male charging cable.

The specified accessory cable is part number 94500109.

WARNING: Do not charge the internal battery using this method for more than 30 minutes or leave it unattended. Overcharging may cause an explosion, property damage, or personal injury.

Vehicle Charging Instructions

1. Start the vehicle engine and keep it running.
2. Connect one end of the male-to-male accessory charging cable to the jump starter’s 12V DC power outlet.
3. Connect the other end to the vehicle’s 12V accessory outlet or cigarette lighter socket.
4. Press the Display button to monitor the internal battery charge.
5. Disconnect the charging cable when the battery is fully charged or before reaching the 30-minute limit.
6. Remove the cable from the jump starter first.
7. Disconnect the other end from the vehicle’s accessory outlet.

Important Vehicle Charging Precautions

• Never charge for more than 30 minutes.
• Never leave the unit unattended while charging.
• The vehicle engine must be running.
• The green charging LED does not operate during this charging method.
• This method bypasses automatic maintain mode.
• The internal battery can become overcharged.
• Completely disconnect the cable whenever the vehicle engine is not running.

How to Jump-Start a Vehicle Using the Schumacher SJ1332

The SJ1332 can assist in starting vehicles equipped with a compatible 12V lead-acid battery system.

Important: A battery must remain installed in the vehicle during jump-starting. Operating the jump starter without a vehicle battery can damage the vehicle’s electrical system.

Preparing the Vehicle

1. Turn the vehicle ignition OFF.
2. Position the DC cables away from fan blades, belts, pulleys, and other moving engine components.
3. Identify the battery’s positive and negative terminals.
4. Determine whether the vehicle uses a negative-ground or positive-ground system.
5. Make sure the Jump Start/USB switch is OFF before making the connections.

Connecting to a Negative-Ground Vehicle

Most vehicles use a negative-ground electrical system.

1. Connect the red positive (+) clamp to the positive battery terminal.
2. Connect the black negative (-) clamp to the vehicle chassis or engine block, away from the battery.
3. Make sure both connections are secure.

Connecting to a Positive-Ground Vehicle

For a positive-ground vehicle:

1. Connect the black negative (-) clamp to the negative battery terminal.
2. Connect the red positive (+) clamp to the vehicle chassis or engine block, away from the battery.
3. Make sure both clamps have secure contact.

Starting the Engine

1. Confirm that the battery clamps are connected correctly.
2. Turn the Jump Start/USB switch to the ON position.
3. Check the voltage displayed on the digital screen.
4. Attempt to start the engine.
5. Crank the engine for no more than 8 seconds.
6. If the engine does not start, stop cranking.
7. Wait at least 2 minutes before trying again.
8. When the engine starts, turn the Jump Start/USB switch OFF.
9. Disconnect the jump starter from the vehicle battery.
10. Recharge the SJ1332 after use.

Jump-Starting Limits

If the engine does not start after the recommended attempts, disconnect the power station and check the vehicle for other problems.

Using the USB Charging Port

The Schumacher SJ1332 includes a USB port that supplies up to 2A at 5V DC.

The port can power compatible USB devices.

USB Output Specifications

USB Charging Instructions

1. Make sure the battery clamps are secured to their storage holders.
2. Turn the Jump Start/USB switch ON.
3. Connect the USB device to the USB port.
4. Allow the device to operate or charge.
5. When finished, disconnect the USB device.
6. Turn the Jump Start/USB switch OFF.
7. Recharge the internal battery.

Using the Built-In Work Light

The SJ1332 includes an integrated work light controlled by a sliding ON/OFF switch on the front of the unit.

Work Light Instructions

1. Position the power station on a flat, stable surface near the work area.
2. Make sure the battery clamps are secured to their storage holders.
3. Move the Work Light switch to ON.
4. Use the light as needed.
5. Move the switch to OFF when finished.

The work light must remain OFF while the unit is being charged or stored.

Powering a 12V DC Device

The SJ1332 includes two 12V DC accessory outlets for compatible devices equipped with 12V accessory plugs.

These outlets can supply power during camping, fishing trips, power interruptions, and other portable applications.

12V DC Output Specifications

How to Use a 12V DC Outlet

1. Make sure the device to be powered is OFF.
2. Open the protective cover over the DC outlet.
3. Insert the device’s 12V accessory plug.
4. Turn on the connected device if required.
5. Allow the device to operate.
6. When finished, turn off the connected device.
7. Remove the plug from the DC outlet.
8. Recharge the internal battery.

12V DC Output Precautions

Do not connect devices that draw more than 20A DC.

The 20A rating applies to both outlets combined.

Do not operate a 12V DC accessory while the internal battery is charging.

Extended operation of 12V equipment may excessively discharge the internal battery.

Recharge the unit immediately after disconnecting the accessory.

Using the Built-In Air Compressor

The Schumacher SJ1332 includes an air compressor designed for inflating compatible tires and other items.

The compressor has a maximum pressure rating of 150 PSI.

Compressor Safety Instructions

• Read the inflation instructions for the item being inflated.
• Never exceed the manufacturer’s recommended pressure.
• Do not leave the compressor unattended.
• Monitor the compressor pressure gauge during operation.
• Stop inflation when the required pressure is reached.

Air Compressor Instructions

1. Remove the compressor hose from its storage compartment.
2. Connect the hose adapter to the tire valve stem by threading it onto the valve.
3. Use an additional adapter if required.
4. Move the Compressor/Inflator switch to the operating position.
5. Allow the compressor to inflate the tire or item.
6. Monitor the pressure gauge.
7. When the desired pressure is reached, move the switch to OFF.
8. Open the connector thumb latch.
9. Remove the connector from the valve stem.
10. Allow the unit to cool.
11. Recharge the power station before storage.

Compressor Thermal Protection

The compressor includes automatic thermal protection.

If the compressor becomes too hot, the protection system shuts it off.

The compressor restarts automatically after it cools sufficiently.

If this occurs, wait several minutes for the compressor to cool.

Using the High-Flow Inflator

The SJ1332 includes a high-flow inflator for items compatible with its inflator hose and adapters.

Warning: Risk of explosion from overinflation.

Read the instructions for the item being inflated and never exceed its recommended pressure.

Inflator Instructions

1. Make sure the battery clamps are secured to their storage holders.
2. Connect the corrugated inflator hose to the high-flow inflator outlet near the Compressor/Inflator switch.
3. Select the correct accessory adapter.
4. Attach an additional adapter to the main adapter if necessary.
5. Insert the adapter into the item being inflated.
6. Move the Compressor/Inflator switch to the INFLATOR position.
7. Inflate the item to the desired level.
8. Move the switch to OFF.
9. Remove the adapter from the inflated item.

Inflator Adapters

The main accessory adapter accommodates up to four different sizes.

Additional adapters can be attached to the end of the main accessory adapter when required.

Estimated Inflation Times

These are approximate values from the manual.

Actual inflation time can vary. Use the compressor pressure gauge to verify the required tire or item pressure, and do not overinflate.

Using the High-Flow Deflator

The SJ1332 also has a deflator outlet for removing air from compatible inflatable products.

Deflator Instructions

1. Make sure the battery clamps are securely attached to their storage holders.
2. Connect the corrugated hose to the high-flow deflator outlet on the side of the unit.
3. Select the appropriate adapter.
4. Attach an additional adapter if necessary.
5. Insert the adapter into the item being deflated.
6. Move the Compressor/Inflator switch to the INFLATOR position, as directed in the manual for deflator operation.
7. Allow the item to deflate to the desired level.
8. Move the switch to OFF.
9. Remove the adapter.

Using the 200W AC Power Converter

The Schumacher SJ1332 has a built-in converter that supplies 120V AC through two outlets.

The converter provides 200W maximum continuous power and a peak surge capacity of 400W.

AC Converter Specifications

Before Using the Converter

The converter generates heat during operation.

Follow these precautions:

1. Keep several inches of clearance around the top and sides of the unit.
2. Do not block the rear ventilation openings.
3. Keep the unit away from flammable fumes and materials.
4. Keep the unit dry.
5. Do not operate the unit or connected equipment when wet.
6. Do not place the unit near radiators, heating vents, or other heat sources.
7. Keep the unit out of direct sunlight.
8. Do not use the converter near an open engine compartment where fumes may accumulate.
9. Do not modify the AC receptacles.

The ideal ambient temperature for converter operation is 50°F–80°F.

How to Power a 120V AC Device

1. Make sure the battery clamps are secured to their storage holders.
2. Open the protective cover over the AC outlet.
3. Make sure the connected electrical device is switched OFF.
4. Plug the device into one of the 120V AC outlets.
5. Turn the Converter switch ON.
6. Check the digital display for the wattage being used.
7. Turn on the connected device.
8. Use the device within the converter’s 200W continuous power limit.
9. Turn off the device and converter when finished.
10. Disconnect the device.
11. Recharge the internal battery after use.

If an AC Device Does Not Start

If a device does not operate properly when first connected:

1. Turn the Converter switch ON.
2. Quickly move the switch OFF.
3. Turn it ON again.

If this does not correct the problem, the converter may not have sufficient capacity to operate the device.

Maximum AC Load

The combined continuous load must not exceed 200W.

If a device’s wattage is not marked, the manual recommends using only devices that draw less than 1.7A AC.

Electrical devices such as televisions, fans, and electric motors may require extra startup power.

A device rated below 200W may still exceed the converter’s surge capacity during startup and cause automatic shutdown.

Automatic Converter Overload Protection

The converter automatically shuts down when it detects an excessive power load.

This protects the converter during overload conditions.

When operating several devices, turn them on one at a time to reduce simultaneous startup surges.

AC Extension Cord Requirements

The manufacturer recommends the following extension cord specifications for devices powered by the converter:

Modified Sine Wave Compatibility

The SJ1332 converter produces a modified sine wave, which differs from the AC waveform supplied by a typical utility power outlet.

Some electrical devices may operate incorrectly or become unusually warm when connected to a modified sine wave converter.

The manufacturer recommends checking the device’s operating instructions before connecting:

• Switch-mode power supplies.
• Linear power supplies.
• Class 2 transformers.
• Line-filter capacitors.
• Shaded-pole motors.
• Fan motors.
• Microwave ovens.
• Fluorescent and high-intensity lamps with ballasts.
• Transformerless battery chargers.

These devices may operate at higher temperatures or overheat.

Using the Converter with a Battery Charger

When powering a battery charger from the SJ1332 converter, monitor the battery charger’s temperature for approximately 10 minutes.

If the charger becomes abnormally warm, disconnect it immediately.

AC Electrical Shock Warning

The converter supplies 120V AC and can cause electric shock or electrocution.

Treat the AC outlets with the same precautions required for a household electrical outlet.

Never connect equipment that exceeds the 200W continuous output limit.

Maintenance and Cleaning Instructions

The SJ1332 requires basic cleaning, battery maintenance, and inspection.

Cleaning the Power Station

1. Turn off the unit.
2. Disconnect charging cables and powered equipment.
3. Disconnect the battery clamps from any vehicle.
4. Use a dry cloth to remove battery corrosion, dirt, and oil.
5. Clean the battery clamps, power cords, and outer housing.

Inspecting the Components

Periodically check that:

• Battery clamps are in good condition.
• Electrical cords are not damaged.
• Compressor and inflator hoses are in good condition.
• Connectors and adapters are intact.
• Components are correctly installed.

All repairs must be performed by qualified service personnel.

Storage Instructions

The SJ1332 should be stored indoors in a cool, dry place.

Battery Clamp Storage

Never store the battery clamps:

• Attached to the carrying handle.
• Clipped together.
• Attached to metal objects.
• Clipped to electrical cables.

When the Jump Start/USB switch is ON, the clamps are energized and can produce sparks if they touch each other.

Keep the switch OFF and place the clamps on their storage holders when jump-starting is not being performed.

Battery Storage Maintenance

Preventing Battery Damage

The internal AGM battery gradually loses charge during storage.

Warm environments can increase battery self-discharge.

Leaving the battery discharged may cause permanent damage.

To maintain battery performance, recharge the SJ1332 at least once every month.

Avoid placing or storing the unit on surfaces that could be damaged if the internal battery unexpectedly leaks acid.

Transporting the Power Station

When moving the power station:

1. Turn all power switches OFF.
2. Secure the battery clamps.
3. Secure the electrical cords and hoses.
4. Protect the unit from impact.
5. Keep it away from objects that may damage cables or connectors.

Troubleshooting Guide

The following troubleshooting procedures address jump-start failures, 12V outlet problems, and internal battery charging issues.

Schumacher SJ1332 Troubleshooting Table

SJ1332 Will Not Jump-Start a Vehicle

If the unit does not start the vehicle:

1. Confirm that the Jump Start/USB switch is ON.
2. Check the battery-clamp connections.
3. Make sure the battery terminals and chassis connection points are clean.
4. Adjust the clamps to improve electrical contact.
5. Press the Display button to check the internal battery charge level.
6. Recharge the unit if necessary.
7. Have the vehicle battery checked if the problem continues.

12V DC Outlets Not Working

If a 12V accessory does not operate:

1. Confirm that the connected device is switched ON.
2. Check the power station’s internal battery percentage.
3. Recharge the unit if the battery is discharged.
4. Make sure the connected device does not exceed the 20A maximum combined output.
5. Disconnect the device if an overload or short circuit is suspected.

The unit contains an internal 20A fuse.

If the fuse has blown, it must be replaced by a qualified service professional.

Internal Battery Will Not Hold a Charge

If the internal battery cannot retain a charge, the battery may be defective.

Have the internal battery checked by qualified service personnel.

Air Compressor Stops During Operation

The compressor includes built-in thermal protection.

If it shuts down from excessive heat, allow it to cool for several minutes.

It automatically restarts when its temperature falls sufficiently.

AC Converter Shuts Down

The converter automatically stops operation during a power overload.

Check the connected device’s power requirements.

The combined continuous load must remain at or below 200W, and the startup demand must be within the converter’s surge capability.

Replacement Parts and Accessories

The SJ1332 manual identifies the following replacement kits and optional accessories.

Replacement Parts

Optional Accessories

The male-to-male charging cable is used for charging the internal battery through a vehicle accessory outlet while driving, subject to the 30-minute maximum charging limit.

Limited Warranty

The Schumacher SJ1332 includes a limited warranty provided by Schumacher Electric Corporation.

Warranty Coverage

The warranty covers defects in materials and workmanship occurring during normal use and care.

Warranty Eligibility

The warranty is provided to the original retail purchaser.

It is not transferable or assignable.

The manual states that the warranty is not valid in Mexico.

Warranty Service

If the product has a covered defect, Schumacher may repair or replace the product with a new or reconditioned unit at the manufacturer’s discretion.

The purchaser must provide proof of purchase and pay shipping charges in advance when sending the unit for warranty service.

Warranty Exclusions

Coverage may be void if the product:

• Is misused.
• Is handled carelessly.
• Is repaired or modified by an unauthorized person.
• Is resold through an unauthorized retailer.
• Has a warranty label removed where applicable.

The warranty does not cover accessories not manufactured by Schumacher Electric Corporation and approved for use with the product.

Product Registration

The manual provides online warranty registration through:

www.batterychargers.com

It also includes a warranty registration card intended to be submitted within 30 days of purchase.

The original purchase receipt must be retained for warranty claims.

Customer Support and Repairs

Schumacher Electric Corporation provides support for repairs, returns, and troubleshooting.

Customer Support Information

Repair and Return Instructions

For repairs or returns:

1. Contact Schumacher Customer Service at 1-800-621-5485.
2. Describe the problem and follow the troubleshooting assistance provided.
3. Obtain a Return Merchandise Authorization (RMA) number.
4. Do not ship the unit until Schumacher issues the RMA number.

The warranty registration mailing address is not a repair shipping address.

Frequently Asked Questions

1. How long does it take to fully charge the Schumacher SJ1332?

The Schumacher SJ1332 may take up to 72 hours to charge fully using a suitable extension cord connected to a 120V AC outlet. When charging is complete, the digital display shows 100, and the internal charger automatically enters maintain mode.

2. How do I jump-start a vehicle with the Schumacher SJ1332?

Turn off the vehicle ignition and connect the battery clamps according to the vehicle’s grounding system. For a negative-ground vehicle, connect the red clamp to the positive battery terminal and the black clamp to the chassis or engine block away from the battery. Turn the Jump Start/USB switch ON and crank the engine for no more than 8 seconds. If the engine does not start, wait 2 minutes before another attempt. Turn the switch OFF after the engine starts, disconnect the clamps, and recharge the unit.

3. How many watts can the Schumacher SJ1332 AC outlets supply?

The SJ1332 has two 120V AC outlets with a combined maximum continuous output of 200W and a peak surge capacity of 400W. The converter produces a modified sine wave, so connected appliances must be compatible with that waveform and remain within the power limit.

4. What is the maximum air compressor pressure on the Schumacher SJ1332?

The built-in compressor is rated for a maximum of 150 PSI. The user must follow the inflation pressure recommended for the tire or other item and monitor the compressor gauge to avoid overinflation.

5. Can the Schumacher SJ1332 charge a phone through USB?

Yes. The SJ1332 includes a USB output rated at 5V DC, up to 2A. Secure the battery clamps to their storage holders, turn the Jump Start/USB switch ON, and connect a compatible USB device. Switch the unit OFF and recharge it after use.

6. Can the Schumacher SJ1332 be charged while driving?

Yes. The internal battery can be charged using an optional male-to-male accessory cable, part number 94500109, connected between the power station’s 12V DC outlet and the vehicle’s accessory outlet. The vehicle engine must be running. Do not charge for more than 30 minutes or leave the unit unattended, because this method bypasses automatic maintain mode and can overcharge the internal battery.

7. Why does the Schumacher SJ1332 air compressor stop working during inflation?

The compressor includes automatic thermal protection. If it becomes too hot, the thermal protection shuts it down. Allow the compressor to cool for several minutes; it restarts automatically when sufficiently cool.

8. How often should the Schumacher SJ1332 be recharged?

The internal battery should be charged immediately after purchase, after every use, and at least every 30 days. The manufacturer recommends keeping the AGM battery fully charged to maintain performance and reduce the possibility of permanent battery damage during storage.