This charger is suitable for all lithium-ion battery sizes in the 48 volt Freedom 48 Stiga, Mountfield & Alpina cordless range. The charger weighs 1kg & has a 2 year manufacturer warranty. It can charge a 2.5 Ah battery in 60 minutes & a 5 Ah battery in 1h 55 minutes.NOTE: NOT COMPATIBLE WITH THE 500 SERIES