NERMAK 12V 10Ah LiFePO4 Deep Cycle Battery 2-Pack — Built-in 10A BMS, 2000+ Cycle Life

NERMAK 2 Pack 12V 10Ah LiFePO4 batteries are rechargeable deep-cycle power cells with built-in 10A BMS, delivering long-lasting, safe 12V power for solar, mobility, and backup applications.

This twin-pack swaps heavier lead-acid units for a lighter, longer-lived lithium iron phosphate option designed for recurring use. Each 12V 10Ah battery offers a much higher cycle life — 2000+ cycles — and an internal battery management system that protects against overcharge, over-discharge, over-current and short circuit. The pair is intended for devices and systems that need reliable 12V DC energy: from off-grid solar setups to scooters, fish finders and camping gear.

How does the built-in 10A BMS protect my devices?

The integrated Battery Management System continuously monitors cell voltages and current. It prevents harmful conditions by cutting charging or discharging when parameters exceed safe limits, improving safety and extending usable life without extra external electronics.

• Overcharge protection: stops charging when cells reach their safe voltage.
• Over-discharge prevention: preserves cell health by disconnecting below safe voltage.
• Over-current and short-circuit cut-off: reduces risk to connected equipment.
• Low self-discharge: supports up to about a year maintenance-free storage.

Can these batteries replace lead-acid units for solar and mobility?

Yes; LiFePO4 chemistry delivers higher usable cycles and lower weight than typical lead-acid alternatives. These NERMAK batteries are designed for deep-cycle duty and can be connected in series or parallel to match voltage and capacity needs for solar charge controllers, inverters, or vehicle systems.

• Series: stack up to four identical 12V batteries for higher voltage configurations.
• Parallel: increase capacity while keeping 12V nominal output.
• Charge note: use LiFePO4-compatible chargers for correct final voltage.
• Applications: small solar systems, RVs, e-scooters, backup power and more.

What are the charging and discharge capabilities?

Each battery supports a recommended quick charge current of up to 5A and a continuous discharge up to 10A, with short-duration pulse capability (2C) for higher startup loads. That balance of charge and discharge rates suits typical portable and renewable-power devices without the bulk of lead-acid chemistry.

• Quick charge: up to 5 amps recommended for faster recharge.
• Continuous output: 10A for sustained device operation.
• Pulse current: 2C for brief high-demand starts (e.g., motors).
• Safety tip: match charger type to LiFePO4 specifications to ensure proper charging.

How long will these batteries last in real use?

NERMAK LiFePO4 cells are rated for 2000+ cycles under typical deep-cycle conditions, far surpassing conventional lead-acid equivalents (usually 200–300 cycles). Actual lifetime depends on depth of discharge, charge rates, temperature, and system setup; following manufacturer charging and storage guidance helps maximize lifespan.

• Cycle life: designed for 2000+ charge/discharge cycles.
• Storage: very low self-discharge supports extended off-season storage.
• Maintenance: no routine watering or equalization required.
• Warranty: includes a 12-month limited warranty from NERMAK.

Who is this for: This 2-pack is aimed at homeowners and hobbyists who need dependable 12V deep-cycle power without lead-acid weight and maintenance — ideal for small solar arrays, RV and camping systems, mobility scooters, battery-powered toys and electronics, fish finders, and remote telecommunication equipment. Choose these batteries when you want a compact LiFePO4 solution with built-in protection and the flexibility to scale voltage or capacity by combining cells. Note: use a LiFePO4-compatible charger; fully automatic SLA chargers may not fully charge these cells.