Qoltec 53705 lithium-ijzerfosfaataccu (LiFePO4) – 12,8 V, 100 Ah, 1280 Wh, BMS

The Qoltec 53705 Lithium Iron Phosphate Battery 100 Ah 12.8 V is a maintenance-free LiFePO4 energy storage unit designed for stable, long-term use in vehicles and stationary systems. With a nominal capacity of 100 Ah and a nominal voltage of 12.8 V, the battery is compact (330 mm × 170 mm × 220 mm) and lightweight for its class, allowing installation in limited spaces. The built-in Battery Management System (BMS) monitors cell balance, overcharge, over-discharge and temperature to ensure safe operation and extended cycle life.

Advantages

This LiFePO4 battery provides deep-discharge capability with low self-discharge and no memory effect, enabling efficient cyclic and buffer operation. It delivers long service life—rated for more than 2000 charge/discharge cycles—while remaining maintenance-free and non-combustible. The construction ensures chemical and thermal stability, lower weight than lead-acid alternatives, and environmentally safer operation without toxic emissions. The product colour is blue and the unit weighs 9.8 kg, making handling and integration into systems straightforward.

Suitable for

• Off-grid and photovoltaic energy storage
• Uninterruptible power supplies (UPS) and voltage converters
• Mobile installations: campers, trailers, yachts and boats
• Electric vehicles, golf carts, wheelchairs and small electric transport
• Alarm systems, access control, emergency lighting
• Power tools, lawn equipment and recreational electric devices

Key specifications

• Battery technology: Lithium Iron Phosphate (LiFePO4)
• Nominal capacity: 100 Ah
• Nominal voltage: 12.8 V
• Dimensions (W × D × H): 330 mm × 170 mm × 220 mm
• Weight: 9.8 kg
• Product colour: Blue
• Built-in Battery Management System (BMS) for cell protection
• Designed for cyclic discharge/recharge and buffer operation

How to use

Install the battery in a well-ventilated, dry location with secure mounting that prevents movement and mechanical shock. Observe correct polarity when connecting to chargers, inverters or loads. The battery can be operated in any orientation; however, follow the equipment manufacturer’s instructions for cable routing and terminal access. For multi-battery systems, connect units of the same voltage, capacity and state of health. Up to four identical batteries may be connected in series or parallel: series to increase voltage, parallel to increase capacity. Use compatible chargers and configure charging parameters suitable for LiFePO4 chemistry (refer to charger documentation).

Recommendations

To maximize service life, avoid prolonged storage at extreme temperatures and keep the state of charge between roughly 20% and 90% when feasible. Use chargers and inverters that include LiFePO4 charging profiles or set charging voltage/current according to LiFePO4 specifications. When paralleling or series-connecting batteries, ensure identical models and similar charge levels to prevent imbalance. Regularly inspect terminals and cable connections and rely on the built-in BMS to protect against overcharge, over-discharge and high temperatures.