Kepler
10 MW
The following build was documented in pieces through my latest bike build thread and as such I thought i would consolidate the battery side of this build as one thread and in the most appropriate section.
The aim for this build was was to build and 18650 pack that looked like it belonged on the bike and could be built without the need for specialist tools.
The battery was for use with a Bafang BBSO2 750W mid drive and as such needed to be able to deliver 20A continuous. Normally the Bafang uses a 13S Lithium Ion pack for 48V nominal however I wanted to up the voltage slightly so I could reduced my max amps the 18A. Subsequently a 14S4P configuration was decided upon.
Another design criteria was that the battery needed to be quick release as I always charge the battery off the bike in my office when commuting to work. It also needed to be very secure as the bike is used for some serious single track work on weekends and gets a real pounding.
The finished product on the bike
The aim for this build was was to build and 18650 pack that looked like it belonged on the bike and could be built without the need for specialist tools.
The battery was for use with a Bafang BBSO2 750W mid drive and as such needed to be able to deliver 20A continuous. Normally the Bafang uses a 13S Lithium Ion pack for 48V nominal however I wanted to up the voltage slightly so I could reduced my max amps the 18A. Subsequently a 14S4P configuration was decided upon.
Another design criteria was that the battery needed to be quick release as I always charge the battery off the bike in my office when commuting to work. It also needed to be very secure as the bike is used for some serious single track work on weekends and gets a real pounding.
The finished product on the bike