VOLTX 12V 300Ah LiFePO4 Lithium Battery User Manual

: June 17, 2024
: VOLTX

Table of Contents

VOLTX 12V 300Ah LiFePO4 Lithium Battery
Product Usage Instructions
WHAT’S IN THE BOX
SAFETY
CHARGING RECOMMENDATIONS
**BATTERY RE-ACTIVATION
LONG-TERM STORAGE
SPECIFICATIONS
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

VOLTX 12V 300Ah LiFePO4 Lithium Battery

Specifications

Model: 12V 300Ah LiFePO4 Lithium Battery
Charging Voltage: 14.6V
Over-Discharge Protection Voltage: 10V
Storage Recommendation: 80% charge level

Product Usage Instructions

Charging Recommendations
It is crucial to use a 14.6V lithium AC to DC or DC to DC battery charger for optimal performance. Avoid using a lead-acid vehicle battery charger as it can damage the battery. When charging, ensure the charger voltage does not exceed the battery’s nominal voltage. For solar charging, use a compatible regulator with a lithium profile and set the parameters accordingly.

Ensure tight and secure battery cable connections.
Follow the instructions on the battery charger.
Avoid charging directly through a vehicle’s alternator.

Battery Re-Activation
If the battery fails to charge due to over-discharge, follow these steps to re-activate it:

Method 1: Disconnect the load, charge with a regular lithium battery charger, and wait for full charge.
Method 2: Use a charger with a 0V function to fully charge the battery.
Method 3: Connect in parallel with another fully charged 12V lithium battery for at least one minute, then charge normally.

Long-Term Storage
For extended battery life, store it at an 80% charge level. Every 6 months, cycle through the battery power by connecting it to an appliance and discharging without reaching over-discharge levels.

FAQ

Q: What should I do if the battery does not charge?
A: Follow the re-activation methods outlined in the user manual based on your specific situation.
Q: Can I use a lead-acid battery charger for this lithium battery?
A: No, it is not recommended to use a lead-acid vehicle battery charger as it may damage the lithium battery.
Q: How should I store the battery for long periods?
A: Store the battery at an 80% charge level and cycle through its power every 6 months to maintain longevity.

LIVE LIFE FULLY CHARGED
Authentic Reliable Quality

WHAT’S IN THE BOX

1 X User manual
1 X 12V 300Ah LiFePO4 Lithium Battery

Scan the QR code or visit voltx.com/manuals www.voltx.com/manuals

Download manuals
Access to tools and tips
Troubleshooting your battery
Detailed battery specifications

SAFETY

CAUTION : RISK OF FIRE, EXPLOSION OR BURNS.

DO NOT Short-circuit
DO NOT Reverse connections from the charger to the battery
DO NOT Disassemble
DO NOT Throw into fire or incinerate
DO NOT Heat above 60°C
Discontinue charging your battery if you see smoke or swelling.
Never leave your battery unattended at any time when being charged or discharged.
Do not expose the battery to moisture or water.

TIPS

It is highly advisable to invest in a dedicated Low Voltage Disconnect (LVD) to safeguard your battery from being discharged to a low voltage, which can negatively affect its lifespan. If an LVD is not available, the battery must always be adequately charged to prevent over-discharge.
The voltage of a LiFePO4 battery measured during the charging process is not a reliable indicator of its actual voltage. To obtain an accurate measurement, it is recommended to let the battery rest for 15 minutes before testing its voltage.

CHARGING RECOMMENDATIONS

NOTE : Use a 14.6V lithium AC to DC or DC to DC battery charger to maximize the battery`s usable capacity.
DO NOT USE A LEAD-ACID VEHICLE BATTERY CHARGER.
You won’t be able to fully utilize the battery’s usable capacity if you use an inappropriate charger or charge it at a lower voltage.

warning
When charging, don’t set the charger to a voltage greater than the battery’s nominal voltage, as it may permanently damage the battery.

Ensure the battery cables are tight, secure and have a good connection.
Follow the instructions on the battery charger.
You can also charge the battery using a solar panel and a compatible regulator with a lithium proﬁle (select LiFePO4 mode on solar regulator).
We recommend setting the solar regulator to the following parameters:
- Overcharge Protection Voltage: 15V
- Overcharge Recovery Voltage: 14V
- Over-discharge Protection Voltage: 10.8V
- Over-discharge Recovery Voltage: 11.2V

The battery should not be charged directly through a vehicle’s alternator.

**BATTERY RE-ACTIVATION

**

HOW TO RE-ACTIVATE A BATTERY THAT NO LONGER CHARGES
The over-discharge protection voltage for this battery is set at 10V, and if the voltage drops below this level, the Battery Management System (BMS) will trigger a safety cutoﬀ to protect the battery.
In such an event, you must follow the reset procedure for the battery as outlined below:
METHOD 1 (EASY)

Disconnect the load from the battery and set it aside for at least 30 minutes.
The battery should recover to a normal voltage level automatically.
The battery can then be fully charged for normal use.

It is important to note that in some cases, METHOD 1 may not be suﬃcient, and you may need to proceed with METHOD 2 or METHOD 3 to reset the battery.
METHOD 2 (REQUIRES A CHARGER WITH 0V FUNCTION )

Use a charger equipped with a 0V charging function.
Charge the battery fully using this charger on its 0V setting.
Once the battery is fully charged, the BMS will reset automatically.
The battery can now be used as normal.

METHOD 3 (REQUIRES A SECOND BATTERY)

Connect the battery in parallel with another fully charged 12V lithium battery.
Allow the battery to charge in parallel for at least one minute.
Disconnect the second battery and charge your battery fully using a regular lithium battery charger.
Once fully charged, the BMS will reset automatically, and the battery can be used normally.

A lead-acid battery with a voltage more than or equal to 12V and less than or equal to 14.6V will also work.

LONG-TERM STORAGE

To prolong the battery’s lifespan, it is advisable to store it at an 80% charge level.

warning
Store the battery in a fireproof container Keep out of reach of children

LiFePO4 batteries have a low self-discharge rate of 2% per month.
To prevent excessive discharge during storage, store LiFePO4 batteries at an 80% state of charge (SOC) if storing for longer than six months.
Failure to charge the battery before storage can cause over-discharge, resulting in the battery’s discharge level falling below the protection level of the BMS.
It is strongly recommended to store the battery at room temperature, particularly for extended storage periods.
Cycling through the battery power every 6 months is an excellent way to add to the longevity of your battery.

To cycle through the battery’s power:

Connect the battery to an appliance and allow it to discharge without reaching the over-discharge voltage level.
Charge the battery until it reaches 100%.
Reconnect the battery to an appliance and discharge it to reduce its charge level back to 80% before storing.