Lithium Batteries.

Lithium iron phosphate batteries (LiFePO4) are the most capable basis for self-sufficient power on board and in the vehicle. They deliver high charge and discharge currents with very stable voltage, weigh far less than lead batteries and last several thousand charge cycles. Here you will find lithium batteries for 12 V, 24 V and 48 V systems from BullTron, SuperB, Mastervolt and EP-Technologies, each with an integrated battery management system.

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All products. 48 items.

BullTron

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.

Frequently asked questions. Answered briefly.

To the Academy

Which charger do I need for a LiFePO4 battery?

A charger with a LiFePO4 profile or a freely adjustable charge voltage set to the battery manufacturer's specification. The philippi ACE chargers have suitable lithium programs. A pure lead charger with float and equalisation charging is unsuitable because it can put the cells under too much stress over time. A charge booster is also recommended at the alternator.

May I charge a lithium battery below 0 °C?

As a rule not, or only with a greatly reduced charge current. Below 0 °C, metallic lithium can deposit on the anode during charging and permanently damage the cell. Many manufacturers allow at most 0.1 C below 0 °C, others block charging completely via the BMS. The data sheet of the specific battery is what counts.

Can I simply replace my lead battery with lithium?

Usually yes, but not without adjustments. Charger, solar regulator and alternator regulation must be set to the lithium profile, the battery monitor needs new parameters, and a charge booster at the alternator makes sense. The Academy article Converting from AGM to lithium shows exactly what to do.

Lithium Batteries.

All products. 48 items.

BullTron Polar 12 V 210 Ah LiFePO4 Battery with Heating

BullTron Polar 12 V 460 Ah LiFePO4 Battery with Heating

BullTron Starter Polar 12 V 118 Ah LiFePO4 Starter Battery, 2,000 A

BullTron Polar Untersitz 12 V 540 Ah LiFePO4 Battery with Heating

BullTron 12 V 150 Ah LiFePO4 Battery with Bluetooth

BullTron Polar Untersitz 12 V 750 Ah LiFePO4 Battery with Heating

BullTron 12 V 100 Ah LiFePO4 Battery with Bluetooth

Double entrance cover caps

Battery pole cover BA 5 / BA 7

Cover caps BA 1 / BA 2 / BA 3

Battery terminal cover

Battery terminal - busbar set

Insulation cap for threaded studs

Rotating battery terminal covers

Red bolt cover

Double Post Cover

Battery terminal BKM

Battery Terminal BK6

Battery terminal cover BA 6

BLA charge balancer

Lithium-Umrüstset 12 V mit BullTron Polar 185 Ah

Lithium-Umrüstset 12 V mit Landstrom-Ladegerät ACE 12/44

BullTron Mover 12 V 50 Ah LiFePO4-Batterie mit Ladegerät

BullTron Polar 48 V 100 Ah LiFePO4-Batterie mit Heizung