Join Date: Nov 2010
Bikes: 7 Tidalforce (+1 frame) ebikes, 15 EVG ebikes, 1 UM Velociti 26", 2 UM Europa's, 1 eZip trail, 1 eZip 1000 scooter, 1 Chinese 48v ped-scooter
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2000 EVG Global 36V bike(s)
Hello all.....I just bought two '00 EVG 36V (SX/LE) Global bikes. One in fact has a 24V battery box with two 12V-12ah batteries installed when I bought it. The lights & horn work great though the rear hub will only power on for about 10 seconds & then shuts down.
My question is, is the controller shutting down because it thinks the battery pack is low? Or is the difference in power from a 24V to 36V making the difference?
I was planning on doing a work-around by buying another 12V-12ah battery & wire it in series with the two in the box/charger to make 36v's, & put this extra battery in a bag on the rear rack.
A dealer is in fact selling this solution with the same batteries ($190), but I'm also being told by a claim expert that the controller on the 36v will not take the 12ah batteries & will "blow" on any batteries in series above 7/8ah (original). I think he's wrong.
My intent is to of course increase the range of the bikes, so does anyone have experience with this situation? Yes, my plan is to go with another battery chemistry, like NiMH or Lithium, to reduce the weight & increase the range. I want to compare the different batteries. Do I need to replace the controller with a 36V brushed 20A one?
Will this 12v-12ah battery box on another 24V EVG bike I just bought, without the box, also blow the controller due to the higher ah's?
Comments or suggestion from experienced ebikers only please.