12V 125Ah Deep Cycle Lead-to-lithium battery Pack LiFePO4 battery
12V 125Ah LiFePO4 deep cycle battery with 1600Wh energy, 6000-cycle lifespan, and 16KG lightweight design. Direct lead-acid replacement featuring BMS protection, M8 terminals, and custom OEM/ODM options for RV, marine, solar, and backup power systems.
12V 125Ah LiFePO4 Battery Pack
,Deep Cycle Lithium Battery 1600Wh
,Solar RV Marine Drop-in Replacement
The 12V 125Ah LiFePO₄ Battery Pack is a high-capacity deep-cycle lithium battery designed as a reliable replacement for traditional lead-acid batteries. Built with high-quality Lithium Iron Phosphate (LiFePO₄) cells and an intelligent Battery Management System (BMS), it delivers stable power, long cycle life, and improved energy efficiency for a wide range of applications.
With a nominal voltage of 12.8V and a capacity of 125Ah, this battery provides approximately 1.6kWh of energy, making it suitable for applications that require dependable and continuous power. Compared with conventional lead-acid batteries, the lithium design offers lower weight, higher usable capacity, faster charging, and significantly longer service life.
- Lead-acid replacement: Designed to replace compatible 12V lead-acid battery systems
- Deep-cycle performance: Suitable for frequent charge and discharge cycles
- Long cycle life: LiFePO₄ chemistry provides excellent durability and stable performance
- Lightweight design: Significantly lighter than comparable lead-acid batteries
- Low maintenance: No electrolyte maintenance or regular water filling required
- Stable output: Maintains reliable voltage during extended discharge
- Flexible installation: Suitable for off-grid, mobile, backup, and recreational power systems
| System Voltage | 12.8V | Rated Capacity | 125Ah |
| Usable Energy | 1600Wh | Cell Chemistry | LiFePO4 (LFP) |
| Design Life | 6000 cycles @ 80% DOD | Self-Discharge Rate | 3% per month |
| Discharge Cut-off Voltage | 10.0V | Charge Cut-off Voltage | 14.6V |
| Size | 520*268*228mm | Weight | 16KG |
| Housing | ABS | Terminal Type | M8 |
| Charge Temperature | 0℃~55℃ | Discharge Temperature | -20℃~60℃ |
- RV and camper power systems
- Marine and boat applications
- Solar energy storage
- Off-grid power systems
- Backup power systems
- Golf carts and recreational vehicles
- Camping and portable power systems
We provide OEM and ODM customization services for different application requirements. Customers can customize battery capacity, dimensions, BMS specifications, communication protocols, connectors, terminals, enclosure design, charging requirements, and other electrical or mechanical parameters.
Our engineering team can also provide technical support for battery selection, system matching, BMS configuration, charger matching, structural design, and sample development.
- Capacity variants from 50Ah to 300Ah in the same footprint
- Optional low-temperature heating pad for winter charging
- RS485 / CAN bus interfaces for inverter and BMS communication
- Custom terminal orientation, label artwork, and retail packaging
- MOQ-friendly trial orders with full technical documentation
A lead-to-lithium battery is a LiFePO₄ battery designed to replace a compatible lead-acid battery in applications such as RVs, boats, solar storage systems, backup power systems, and industrial equipment. It provides longer cycle life, lower weight, higher usable energy, and lower maintenance requirements compared with traditional lead-acid batteries.
Yes, the dimensions match the Group 31 standard. Always measure your tray first, since a few trays are slightly shallower than the nominal depth.
Depending on the battery design and BMS configuration, multiple batteries may be connected in parallel and/or series to increase capacity or system voltage. The batteries should be specifically designed and approved for the intended connection method.
Yes. A LiFePO₄ battery pack can be equipped with an intelligent BMS to monitor and protect the battery during operation. Typical protection functions include overcharge, over-discharge, overcurrent, short circuit, and temperature protection.
