Helitowcart recommends 12 volts deep cycle batteries, Group 24, 70-85 amps hours, Dimensions 10 1/4" x 6 13/16" x 8 7/8", Type AGM or GEL or LEAD-ACID
Battery type readily available from local retailers worldwide (Sears, Wal-Mart, etc...)
Clean, no pollution, no odours
Swift and silent operation in hangars
No messy hydraulics
No maintenance (with GEL and AGM types)
Range is more than 65 cycles (you get more than a week of use with one battery charge)
Charging is less than 8 hours (overnight)
Torque control is smooth and precise
Speed adjustment is proportional for excellent movement control in tight environment
Proven and only technology for outside and inside use
Battery life is on average more than one (1) year even with heavy use every day
Starts without noise, effort, when you need it
Anybody can use it, anytime
Maintenance-free
Sealed no leak design
Higher cranking amps
Lower self discharge
Greater vibration resistance
Gel battery's electrolyte is suspended in a silica-based gel, which produces a thick pasty material. AGM battery's electrolyte is suspended in fibreglass mat separators, which act as absorbent sponges