Lithium Batteries.

Lithium batteries (LiFePO4) for boats and vehicles

Use the switch above to show only the models for boats or for vehicles.

The advantages at a glance

• Short charging times: charge currents up to 1 C – a 100 Ah battery is full in about one hour at 100 A.
• Full power to the end: 1 C to 3 C continuous and up to 10 C for short periods, without the voltage drop of lead. Ideal for combi inverters, anchor windlass, bow thruster or an induction hob in the camper.
• Low self-discharge: less than 3 % per month; the battery can also spend the winter lay-up or longer standstills partially charged.
• Up to 70 % lighter: a 210 Ah LiFePO4 battery weighs around 23 kg, a lead battery of the same nominal capacity around 70 kg.
• Almost the full capacity is usable: with lead, only about 50 % of the nominal capacity is really usable.

Control and monitoring

The integrated battery management system (BMS), together with an internal or external relay, protects the cells against overcharging and deep discharge, monitors cell temperature and balances the individual cells. The P-BUS-capable BullTron models (suffix “-P”) report state of charge and temperature directly to the philippi system monitors.