Which kind of battery should I choose?

[A123rc]

I want to buy a high quality battery for my Ebike, so do you know some kinds of batteries, which one can work more long ?

[pebe]

The best type of battery is surely the type that was originally supplied. I suspect it was a deep cycle lead acid one.

Or are you converting a standard bike into an Ebike?

[aadambell]

Some of the best batteries for the ebike include the Lithium Polymer Battery, 36 Volt, 10AH; 12V 10 Ah SLA; Giant Little Battery (NiMH 24V); eZee Lithium Batteries for ebikes 10Ah; The Suede E-battery pack; ebike 24 volt battery etc. All of these are good in their own way and get fitted in different models of ebikes.