RV & mobile

M Series lithium battery

LiFePO4 batteries with high discharge current, built-in heating, battery management and a precision shunt, at 12V and 48V.

Part of the LIBERGRID, UNIDYNGO, AMOY and MEZZO systems

M Series batteries are the storage in every TBB on-board system, from LIBERGRID to AMOY. They deliver steady voltage right down to a low state of charge, recharge quickly from shore power, solar or the alternator, and last for thousands of cycles.

The M12 models suit campervans, motorhomes and caravans; LIBERGRID is built around the M12-150 and M12-230. The M48-105 and M48-150 are 48V modules for PG Series systems with heavy loads.

Models

M12-150	12.88V, 150Ah
M12-230	12.8V, 230Ah
M12-300	12.88V, 300Ah
M48-105	48V, 105Ah
M48-150	51.52V, 150Ah

Features

High continuous discharge runs air conditioners, induction hobs and microwaves.
Built-in heater warms the cells before charging in freezing weather.
Battery management balances the cells and protects against over-charge, over-discharge and over-temperature.
A built-in shunt gives an accurate state of charge, with no separate battery monitor needed.
Switch the battery off remotely with the battery remote switch or from the monitor, for long storage with almost no drain.

Where to buy Datasheets and manuals

Compare models

Model	Voltage	Capacity	Energy	Max charge	Continuous discharge	Peak discharge	Weight	Dimensions
M12-150	12.88V	150Ah	1.93kWh	150A	150A	200A (15 min)	14.7kg	333 × 176 × 224mm
M12-230	12.8V	230Ah	2.94kWh	230A	230A	300A (30 min)	24kg	340 × 190 × 328mm
M12-300	12.88V	300Ah	3.86kWh	300A	300A	300A	32.2kg	380 × 230 × 337mm
M48-105	48V	105Ah	5.04kWh	100A	100A	150A (30 min)	39.2kg	455 × 200 × 300mm
M48-150	51.52V	150Ah	7.73kWh	150A	150A	200A (30 min)	60kg	500 × 290 × 306mm

Specifications

Battery
Chemistry	Lithium iron phosphate (LiFePO4)
Charge voltage	14.2V (M12), 53.25V (M48-105), 56.8V (M48-150)
Cycle life	Over 4000 cycles at 80% depth of discharge (0.5C, 25°C)
Parallel connection	Up to 8 batteries
Charging temperature	2°C to 63°C (cell)
Discharging temperature	−30°C to 63°C (cell)

General
Heater	Built in, warms the cells when charging starts
State of charge	Built-in precision shunt
Idle draw when shut down	Under 0.1mA
Communication	CAN and RS485
Displays	LIBER43, VS28-LS or DTU-BLE (model dependent)
Protection rating	IP20
Certifications	CE, UN38.3, E-Mark; RCM and CB on M12-230 and M48 models