Turn every road trip into a worry-free adventure with KeepKnow LiFePO4. Whether you’re boondocking off-grid, running your appliances, or cruising cross-country, this battery delivers reliable energy to keep your RV life running smoothly anytime, anywhere.
KeepKnow 12V 320Ah Lithium Battery
$389.99
$486.99
20% OFF
Subtotal:
$389.99
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Free standard shipping on all orders
Estimated to be delivered within 2 - 7 business days
5 Years Warranty
Backed up by techical support within 24hrs.
Free Returns
Learn More.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Power your world with KeepKnow 12V 320Ah LiFePO4
Endurance Meets Safety for Complete Energy Freedom
Built to last with Grade A cells and advanced BMS protection delivering up to 6,000 life cycles and unmatched safety. The expandable modular design makes it the ultimate solution for solar storage, RVs, marine power and off-grid independence.
Safety Meets Durability Advanced BMS Protection
The integrated smart BMS provides 6 layers of safety protection including over-charge over-discharge over-current over-voltage short circuit and high/low temperature safeguards to keep the battery and your devices safe at all times.
Flexible Capacity Expansion enables unlimited power potential
Supporting up to 4S4P expansion, you can build a system from a small backup power unit to a full-scale home energy solution, with maximum capacity reaching 65.53kWh to meet growing power demands.
Easy Installation with Lightweight Design
Compact and lightweight, it cuts size and weight vs. traditional batteries, saving valuable onboard space. Quick to install on fishing and leisure boats, it frees up storage for a cleaner, more comfortable experience.
Multiple Charging Methods, Unlimited Power Supply
Three flexible ways to charge: dedicated LiFePO4 charger, solar panels with MPPT, or generator. Fast charge in as little as 4.3 hours, powering you on or off the grid with ultimate convenience.
Real-Time Battery Control with App
Easily monitor and manage your battery through a smartphone app with instant connectivity. View real-time status, track voltage and charge levels, and control discharge or power on/off remotely. This intelligent system delivers full power management at your fingertips, enhancing safety, efficiency, and convenience.
Tailored for Solar Power and Life on the Move
Delivers reliable, high-efficiency energy for solar systems, RVs, and off-grid setups. With an extended cycle life, it provides the perfect solution for dependable energy storage and backup power whenever you need it.
Safety Precautions for Use
Use batteries with matching brand, type, voltage, capacity, and BMS. Operate within safe temperature ranges. Not for golf carts or car starting. Smart BMS ensures protection and longevity.
Nominal Voltage | 12.8V | |
Nominal Capacity | 320Ah | |
Nominal Energy | 4096Wh | |
Dimension (L * W * H) | 345 * 190 * 245 mm | |
Approx. Weight | 26.1kg | |
Terminal | M8 bolts | |
Cycle Life | >6000 Cycle @80%DOD, at 25°C | |
Months Self Discharge | ≤3% per month at 25°C | |
General | ||
Charge | Charge Voltage | 14.6+0.2V |
Recommend Charge Current | 40A | |
Max. Charge Current | 100A | |
Discharge | Max. Continuous Discharge Current | 200A |
Peak Discharge Current | 650A(<3S) | |
Discharge Cut-off Voltage | 10.0V | |
Temperature | Charge | 0°C to 50°C (32°F~122°F) |
Discharge | -20°C to 60°C (-4°F~140°F) | |
Storage | -10°C to 50°C (14°F~122°F) | |
Parallel Connection | Support 4pcs in Parallel | |
Serial Connection | Support 4pcs in Series | |
Note | ||
Series and Parallel connections DO NOT recommended at the same time | ||
If need serial connection, please check whether the model support | ||
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