Hi. Ok, now another tried and tested battery im using. After the mobility battery I was using became a pain due to size and weight I bought a 'Ping battery' ( lifepo4 ). I have been using this on 24 volt and have had 42 charge / discharges from it and the BMS system has never let me down or damaged the battery. peak 120amps and a continuous 80a ( although rated 40 ) it has shown to be very tough due to the C series cells. This battery has been used on a 'Heinzmann' electric cycle conversion also that can be a continuous 33amp. Expensive but worth it.
Im sure someone else on here is using a ping battery, cannot remember who ?
http://www.pingbattery.com/servlet/StoreFront
info@C5Alive.co.uk