Standard Battery 12 month warranty Features bag with convenient carry handles Fused cable protects trolley & battery 12V 21ah capacity 18 hole capacity on one charge* * This battery will do 18 holes on a Motocaddy single motored trolley when used in normal conditions. The battery is not designed to do 18 holes over consecutive days. Extended Battery 12 month warranty Features bag with convenient carry handles Fused cable protects trolley & battery 12V 28ah capacity Up to 36 hole capacity on one charge* * This battery will do 36 holes on a Motocaddy single motored trolley when used in normal conditions. The battery is not designed to do 36 holes over consecutive days.