Lead-to-Lithium Battery 12.8V 15Ah
Model: SCLFP-12.8V-15

Product Overview
Is the SCLFP-12.8V-15 the Right Capacity for You?
Best suited for
At just 192Wh, the 12.8V 15Ah is the lightest drop-in lithium replacement in this range, built for compact 12V equipment rather than whole-system backup. It suits handheld instruments, small RV house loads, gate openers, security sensors, and single LED lighting circuits where a sealed lead-acid pack has become too heavy or short-lived. Its 15A continuous discharge limits it to roughly 180W of 12V load, so it is not intended for inverters, fridges, or surge-heavy devices.
Typical loads this capacity handles
Typical loads for the 15Ah pack: one or two 5W LED panels for about 10 hours, a phone charge or two from a small converter, gate and sensor standby draw, or a handheld VHF or instrument. It cannot start a compressor fridge or support a microwave, kettle, or power tool. If your load sheet already lists more than 150W combined, the 30Ah is the smallest sensible choice.
Estimated runtime
Runtime example: keeping within the recommended 90% usable window leaves about 170Wh. Two 5W LED lamps (10W total) run for roughly 17 hours; a 15W instrument or sensor load runs for about 11 hours. Anything drawing 50W or more empties the pack in around 3 hours, which is why higher loads belong to larger models.
Sizing advice
Choose the 15Ah when weight and enclosure space matter more than runtime. If the application needs an overnight light bank, a small fridge, or more than one device at a time, step up to the 30Ah instead — the price gap is small but the usable energy doubles. Note the 15Ah ships in a small 15.3 by 8.0 by 9.6 cm case, so verify your existing lead-acid tray can accept the smaller footprint and that a 15A limit covers startup current.
Technical Specifications
- Voltage
- 12.8V
- Capacity
- 15Ah192WH
- Discharge Current
- 15A
- Battery Type
- LiFePO4
- Dimensions
- 15.3*8.0*96CM
Key Advantages
- ✓15Ah192WH of Grade A LiFePO4 storage with about 90% usable energy and 2000-4000 cycle life
- ✓Standard drop-in footprint that replaces lead-acid batteries with no tray or wiring modification
- ✓5-year warranty with CE, UN38.3, and MSDS certification as standard
- ✓Factory-direct wholesale pricing and full OEM/ODM customization from CMJ Solar
Applications
Shipping & Warranty
Worldwide Shipping
Global shipping via sea freight and express courier. FOB Shenzhen or EXW Jiangmen terms available. Production lead time 10-20 days depending on order volume and customization requirements.
Warranty & Support
5-year warranty on battery systems. LiFePO4 cells rated for 2000-4000 cycles. BMS protection, WIFI monitoring, and technical support included. Spare parts available throughout warranty period.
Frequently Asked Questions
What warranty does this product come with?
The Lead-to-Lithium Battery 12.8V 15Ah comes with a 5-year warranty covering the LiFePO4 battery cells and integrated BMS. Our LiFePO4 cells are rated for 2,000-4,000 charge-discharge cycles, providing 5-10 years of reliable daily use under normal operating conditions. Spare parts and technical support are available throughout the warranty period.
What is the MOQ (Minimum Order Quantity)?
The MOQ is typically 20 units per model for standard products. Sample orders of 1 unit are welcome for testing and evaluation. For OEM/ODM custom packaging or private labeling, the MOQ is 500 units. Contact our sales team for specific pricing based on your order volume.
How long can the Lead-to-Lithium Battery 12.8V 15Ah power my home during an outage?
The Lead-to-Lithium Battery 12.8V 15Ah provides 192Wh of stored energy (approximately 173Wh usable at 90% depth of discharge). At an average essential-load draw of 500W (lights, router, refrigerator, and TV), it can sustain power for approximately 0.3 hours. At 1,000W, runtime is approximately 0.2 hours. Actual runtime depends on total connected load and usage patterns.
Is this a direct drop-in replacement for lead-acid batteries?
Yes. The Lead-to-Lithium Battery 12.8V 15Ah is designed as a direct drop-in replacement for equivalent lead-acid batteries. It matches the standard form factor and terminal positions of conventional lead-acid batteries while delivering 12.8V LiFePO4 chemistry. Simply remove the old lead-acid battery, place the LiFePO4 unit in the same compartment, and connect the existing cables. We recommend setting your charger or charge controller to the LiFePO4 charging profile for optimal performance and lifespan.
How long does the LiFePO4 battery last?
The LiFePO4 cells in the Lead-to-Lithium Battery 12.8V 15Ah are rated for 2,000-4,000 charge-discharge cycles before capacity drops to 80% of the original rating. In a typical daily-cycle residential application, this translates to 5-10 years of service life. LiFePO4 chemistry also offers superior thermal stability and safety compared to lead-acid or NMC batteries, with no maintenance required.
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