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Ultimatron Heat 150Ah 12V battery for Caravan & Motorhome
Lithium battery for caravans, motorhomes or boats with a built-in heating system, allowing it to be charged even in winter. Its compact size also makes it suitable for installation under the driver’s seat in motorhomes where the leisure battery is located there. The Ultimatron Heat 150Ah has a BMS (Battery Management System) that ensures and protects the battery from incorrect charging, high temperatures and overload. Thanks to its BMS, you can replace your lead-acid battery (not starter batteries) directly without needing to make any adjustments to the electrical system. The battery can also be connected in parallel with up to 4 batteries for increased capacity.
READ MORECapacity: 150 Ah (1920 Wh)
Output capacity: 12V/200 A (approx. 2500W)
Nominal voltage: 12.8V
Weight: 15.6 kg
Lifespan: approx. 15 years (6000 cycles to 80%)
150Ah Lithium Battery for Caravan and Motorhome – Suitable for Sub-zero Conditions
High-capacity battery with low weight, compact size and significantly longer lifespan than a traditional lead-acid battery. A unique feature of this LiFePO4 battery from Ultimatron is the built-in heating system that preheats the battery before charging when necessary. It is especially suitable for those who use their caravan or motorhome during the colder parts of the year. The advantage of the lithium battery is not only much faster charging compared to traditional batteries, but also the ability to use nearly the entire battery capacity – unlike lead-acid batteries which typically offer only about 50%. This means this battery is equivalent to approx. 225Ah in lead-acid batteries, at a significantly lower weight and smaller size.
The battery features an integrated BMS (Battery Management System) for maximum safety and lifespan. Thanks to the built-in electronics, the battery can be charged via a standard constant voltage charger, solar charge controller, etc.
Bluetooth
The BMS also has a Bluetooth connection that allows you to connect it to your phone to check battery status. You can view:
- Charge status
- Voltage
- Available capacity
- Number of charge cycles
- Battery temperature and health
Ultimatron Heat 150Ah Lithium Battery for Caravan/Motorhome
- Drop-in replacement – no external components required
- Built-in heating system – enables charging even below 0°C
- Bluetooth connection – connect to app for battery status
- Designed to replace traditional battery (same voltage and terminal configuration)
- Long lifespan – 15 years with normal use (5–10 times longer than a lead-acid battery)
- Low weight (saves approx. 40 kg)
- High capacity – real capacity equivalent to 225 Ah lead-acid battery
- Environmentally friendly
- Built-in protection via BMS (Battery Management System)
- System automatically balances cells, extending battery life (often what separates good from poor lithium batteries)
- 3–10 times faster charging
- Custom size designed to fit under the seat of Fiat Ducato, Citroën & Peugeot motorhomes
Specification Ultimatron 150Ah Lithium Battery
| Nominal Voltage: | 12.8V |
| Nominal Capacity: | 150 Ah / 1920 Wh |
| Connection: | DIN (T11) 17mm neg 19mm pos / M8 |
| Output Capacity: | 12V / 150Ah |
| Battery Type: | Lithium Iron Phosphate (LiFePO4) |
| Weight: | 15.6 kg |
| Dimensions (WxDxH): | 35.5 x 17.5 x 18.8 cm |
| Battery Management System (BMS): | Integrated |
| Cycle Life (80% DoD): | >6000 |
| Warranty: | Full warranty 2 years or up to 2000 cycles / 5-year limited warranty (up to 2200 cycles) |
| Operating Temperature: | -20℃ to 55℃ @60±25% RH (Charging from -35℃) |
| Discharge Efficiency: | Min. 98% @0.2C to 10.0V |
| Max Discharge Current: | 200A (Peaks: 600A for 200–500 ms) |
| Recommended Charger: | 30A (Max 75A) |
| Recommended Charging: | 14.6V ± 0.1V (80A, Max 150A) |
| Charger Type: | Traditional or lithium |
| Charging Time: | Depends on charger capacity |
| Self-discharge per Month: | approx. 3% |
| Heating Function: | Can charge down to -35°C, minimum 7A required for heating |
| Protection: | Over/undervoltage, overcharge, over-temperature, short circuit, etc. |
| Lifespan: | Approx. 15 years with normal use |
Compatible Chargers/Solar Panels
Ultimatron's BMS supports almost all battery chargers and solar panels and works directly with your caravan/motorhome's charger. It is compatible with all external chargers that deliver a steady current during charging. With so-called smart chargers that pulse the current to recondition lead-acid cells or for maintenance charging, the BMS will shut down charging. However, many smart chargers can be set to a non-pulsing mode. For those charging via solar panels, the battery supports up to 80A.
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