The Surlon Power 12.8V 20Ah LiFePO₄ battery is designed as a direct replacement for traditional SLA (sealed lead-acid) batteries, offering higher efficiency, longer service life, and maintenance-free operation.
Built with advanced lithium iron phosphate (LiFePO₄) technology, this battery provides 256Wh energy capacity, stable power output, and excellent safety performance for applications including backup power systems, solar energy storage, UPS equipment, electric vehicles, and industrial devices.
Compared with conventional lead-acid batteries, it delivers a lighter design, faster charging capability, deeper discharge performance, and significantly reduced lifetime maintenance costs.
Designed with a standard 12.8V 20Ah configuration, this lithium battery enables easy replacement of traditional lead-acid battery packs without major system modifications.
Benefits include:
Using premium LiFePO₄ cells, the battery supports:
＞2,000 cycles at 100% Depth of Discharge (DoD)
Compared with SLA batteries, it offers a much longer service life, helping reduce total ownership costs and improving system reliability.
The battery supports fast charging and high current output:
Providing stable power delivery for applications requiring reliable backup energy.
The integrated Battery Management System (BMS) continuously monitors battery status and provides multiple protections:
Ensuring safe operation and extending battery lifespan.
Compared with traditional SLA batteries, the LiFePO₄ battery offers:
Making installation easier and reducing ongoing maintenance costs.
The battery uses a strong ABS housing with an IP65 protection rating, providing resistance against dust and water splash.
It is suitable for indoor applications and protected outdoor environments where reliable power performance is required.
Optional communication functions support:
An optional LED SOC indicator allows convenient battery status monitoring and system management.
The 12.8V 20Ah LiFePO₄ battery is widely used in:
| Item | Specification |
|---|---|
| Battery Chemistry | LiFePO₄ |
| Nominal Voltage | 12.8V |
| Nominal Capacity | 20Ah |
| Energy Capacity | 256Wh |
| Cycle Life | ＞2000 cycles @ 100% DoD |
| Internal Resistance | ≤40mΩ |
| Charge Efficiency | 100% @ 0.3C |
| Discharge Efficiency | 96~99% @ 0.3C |
| Standard Charge Voltage | 14.4 ± 0.2V |
| Charge Current | 20A |
| Maximum Charge Current | 30A |
| Discharge Cut-off Voltage | 10.8V |
| Continuous Discharge Current | 20A |
| Maximum Pulse Current | 80A (<3s) |
| Charging Temperature | 0°C ~ 45°C |
| Discharging Temperature | -20°C ~ 60°C |
| Storage Temperature | 0°C ~ 40°C |
| IP Rating | IP65 |
| Case Material | ABS |
| Dimensions | 197 × 132 × 169mm |
| Weight | 4.39kg |
| Terminal | M6 |
| Communication | SMBus / RS485 / RS232 (Optional) |
| SOC Indicator | LED (Optional) |
Surlon Power Technology Co., Ltd. specializes in the design and manufacturing of high-quality LiFePO₄ battery packs for industrial, commercial, and energy storage applications.
With professional R&D capabilities, advanced manufacturing facilities, and strict quality management systems, Surlon Power delivers safe, reliable, and customized battery solutions worldwide.
Our quality systems include:
With two advanced manufacturing bases, Surlon Power provides cost-effective lithium battery solutions trusted by global customers.
Yes. The 12.8V 20Ah LiFePO₄ battery is designed as a direct replacement for 12V SLA batteries, providing longer lifespan, higher efficiency, and maintenance-free operation.
The battery supports more than 2,000 charge cycles at 100% DoD, offering significantly longer service life than traditional lead-acid batteries.
No. Unlike SLA batteries, LiFePO₄ batteries require no water refilling, acid maintenance, or terminal cleaning, reducing operating costs.
Yes. Surlon Power provides OEM and ODM customization, including capacity, dimensions, connectors, communication protocols, and battery configurations.
Yes. The built-in BMS provides multiple protection functions, including over-charge, over-discharge, short-circuit, over-current, and temperature protection.
Compared with traditional sealed lead-acid batteries, LiFePO₄ SLA replacement batteries provide higher energy density, longer cycle life, faster charging, lighter weight, and improved safety.
The Surlon Power 12.8V 20Ah LiFePO₄ battery is a reliable solution for customers seeking efficient, sustainable, and maintenance-free energy storage.
Contact Surlon Power today for customized lithium battery solutions.
12.8V 20Ah LiFePO₄ SLA Replacement Battery | Lithium Battery Manufacturer
Surlon Power 12.8V 20Ah LiFePO₄ SLA replacement battery offers 256Wh energy capacity, 2000+ cycles, IP65 protection, fast charging, and maintenance-free performance for UPS, solar, and backup power applications.
