Lithium-ion type batteries are more rugged and efficient than lead-acid batteries. They allow more charging flexibility than lead-acid batteries, with 70% space and weight savings. They also benefit from a wide operating temperature range, excellent cycling performance and low internal resistance.
If you are unsure about which battery you need for your application, have a good read of our article on the subject - 'How to choose batteries for off-grid systems'.
Victron Energy offer a manufacturer warranty of 2 years on their products, RELiON lithium-ion batteries have a 5 year manufacturer warranty, and BYD offer an amazing 10 year warranty.
RELiON LiFePO4 12.8V Lithium-ion Battery - RB100, RB200, RB300
£999With up to 80% Depth of Discharge, why not change to these hugely popular, brand new, lithium-iron phosphate batteries that are more efficient, smaller and longer-lasting than normal lead-acid batteries.
Victron Energy LiFePO4 Battery 12,8V/100Ah Smart
£1101The smallBMS can replace the VE.Bus BMS in several applications. It is however not suitable for use with VE.Bus MultiPlus and Quattro inverter/chargers: it has no VE.Bus interface. The smallBMS is intended for use with Victron Smart LiFePo4 batteries with M8 circular connectors.
BYD Battery-Box Premium LVS 48V Lithium Battery - 4.0kWh module
£2055BYD are changing the way we look at battery storage. With their flexible LiFePO4 modular system and smart BMS, plus the highest output power in the industry, these incredibly high power 48V batteries will improve any storage system. Comes with a 10 year warranty and is compatible with Victron, SMA, SOLAX and GOODWE inverters.