Thanks to the use of Lithium Iron Phosphate (Li Fe PO4) as a positive pole material and graphite (C) as negative pole material, SHIDO Li-ion Batteries offer the best quality both technology and performance wise.  Very lighweight, waterproof and powerful, SHIDO Batteries ensure a higher intensity during startup compared to a regular lead-acid battery. Lifetime is also 3 to 4 times longer than a regular battery.   SHIDO Li-ion batteries are way more powerful than regular batteries thanks to a 5 times more concentrated power output and 3 times more important maximum unloading capacity. This high unloading capacity is a strength for motorsport applications and the need for high output batteries.  Li-ion batteries offer stable capacities up to 4 times longer than regular ones, ensuring for the best lifetime even when not in use and stored. Compatible with race cars, motorbikes, ATV and even Jet-ski !   SHIDO Li-ion batteries offer multiple advantages : Ultimate starting capabilities 3/4 lighter than a regular battery Maximum unloading capacity 3 to 4 times longer lifetime than a regular lead battery Lower consumption Ultra fast charge No risk of explosion No maintenance Stable charging tension No pollution Capacity indicator Waterproof Multiple position installation   Battery charge : It is mandatory to never charge this battery at a higher voltage than 15V. Never install a lithium battery if the trickle charger can go higher than a 15V tension. Battery needs to be charged before first use. WARNING : lithium batteries have a specific charging process. Most alternators have a high output than can damage the battery. Lithium battery use requires an adaptation of the entire car's electric system with the replacement of the alternator or the use of a BMS.    Specs : Size: 186X82X171mm Intensity: 16A Voltage: 12V Weight: 1.7kg Standard charge power: 4A Maximum charge power: 28A Capacity : 7.5Ah CA : 420A Energy : 90Wh       GT2i Team advice : Don't forget SHIDO's specific battery charger sold separately : SHI-CHARGEUR