Offgridtec LifePo4 battery 12/18 12.8V 18Ah BMS integrated 230Wh

The LiFePO4 battery 12/18 from Offgridtec (MPN 020670) is a state-of-the-art and efficient energy storage solution. With a capacity of 18 Ah and a nominal voltage of 12.8 V, it ensures both safety and outstanding performance. Thanks to its compact, maintenance-free design, the battery is easy to install and, through parallel connection, integrates flexibly into customized energy storage systems. Equipped with an integrated Battery Management System (BMS), the battery is protected against overcharge, deep discharge, short circuits and overheating. This not only extends runtime but also increases safety during operation. The powerful battery impresses with a service life of up to 2000 charge cycles, so you benefit from reliable power for a long time.

The LiFePO4 battery 12/18 at a glance

• Integrated BMS with numerous protective functions
• Long service life: 2000 cycles
• UPS, emergency power supply
• Low weight
• Higher performance
• Superior safety
• Increased flexibility
• up to 4 in parallel connection
• Fast charging, 98% high power density

Multi-talented – flexible with lithium technology from Offgridtec

Despite higher initial costs compared to AGM or gel batteries, Offgridtec LiFePO4 batteries offer excellent value for money. With a lifetime of up to 2000 charge cycles, they generally far exceed the maximum service life of the best lead-acid batteries. The LiFePO4 with a nominal voltage of 12.8 V and a nominal capacity of 18 Ah convinces with its space savings and a weight of only 2.1 kg, which reduces weight by about 70% compared to conventional batteries. The efficiency during energy delivery is an impressive 92%, significantly higher than the 80% typical of lead-acid batteries. This can be crucial in off-grid systems, especially stand-alone solar or wind power systems.

Integrated BMS

The LiFePO4 provides automatic protection through the internal battery management system. The lithium iron phosphate chemistry eliminates the risk of explosion or combustion due to severe impacts, overcharging or short circuits. By precisely controlling these parameters, the BMS ensures optimal battery use and extends the battery’s service life.

• Overvoltage protection
• Undervoltage protection
• Overload protection
• Short-circuit protection
• Protection of the cells against excessively high or low temperatures

Applications

• Renewable energy systems such as photovoltaic & solar installations
• Vehicles such as motorhomes, caravans and campers
• Marine applications such as fishing and electric boats
• Uninterruptible power supply (UPS) for emergencies

Parallel connection

The parallel connection of our LiFePO4 batteries offers increased flexibility. With the modular design, you can use up to four batteries in series and four in parallel with the 12.8 V versions. This allows you to easily adapt your system’s capacity and performance.

LiFePO4 technology

A LiFePO4 battery stands for "lithium iron phosphate battery" and is a type of lithium-ion battery. It is characterized by a specific chemical composition that uses lithium iron phosphate as the cathode material. These batteries can undergo thousands of charge cycles, resulting in a longer overall lifespan compared to other battery types. They are considered safer than some other lithium-ion batteries because they are less prone to overheating or thermal instability. They also offer a constant voltage and performance over most of their discharge cycle, a high discharge rate and low weight.

Advantages of Offgridtec LiFePO4 over conventional batteries

• Longer cycle life: Up to 20 times longer in cyclic use and 5 times longer in standby compared to lead batteries
• Low weight: Up to 40% lighter than comparable lead batteries
• Higher performance: Twice the power of a lead battery at high discharge
• Low self-discharge: Delivers twice the power of a lead battery even at high discharge rates
• Highly efficient: 92% energy utilization compared to 80% with lead-acid batteries
• Enhanced safety features: Integrated BMS protects against overcharge, deep discharge and short circuits, enclosure rated IP65

Technical data

• Nominal voltage: 12.8 V
• Nominal capacity: 18 Ah
• Max. charging voltage: 14.6 V
• Discharge voltage: 10 V
• Charge current: 9 A
• Operating current: 20 A
• Max. pulse current: 40 A
• Rated battery energy: 230 Wh
• Connection: M5
• Protection rating: IP65
• Weight: 2.1 kg
• Dimensions: 181 x 77 x 170 mm
• Service life: 2000 cycles

Scope of delivery

1x Offgridtec LiFePO4 battery 12/18, 12.8 V 18 Ah, integrated BMS, 230 Wh