Search found 7 matches

by OctateZero
Aug 28 2013 5:41pm
Forum: E-Bike General Discussion
Topic: Replacing OEM Giant Revive battery?
Replies: 13
Views: 3146

Re: Replacing OEM Giant Revive battery?

Showing my e-bike ignorance here, but does the rest of the bike's electrical system need this exact PCB in order to function? If so, I guess my only real option would be to attempt to charge these pouches or connect new pouches to the existing board. If not, I think I'd rather swap the whole thing o...
by OctateZero
Aug 28 2013 2:16pm
Forum: E-Bike General Discussion
Topic: Replacing OEM Giant Revive battery?
Replies: 13
Views: 3146

Re: Replacing OEM Giant Revive battery?

I guess my main question at this point is whether something else (like a Ping LiFePO4 pack with integral BMS) could just drop in and replace everything seen here. Their 24V 10AH is relatively inexpensive and seems close to the original specs. Should I be able to just wire it up to the factory +/- po...
by OctateZero
Aug 24 2013 11:51pm
Forum: E-Bike General Discussion
Topic: Replacing OEM Giant Revive battery?
Replies: 13
Views: 3146

Re: Replacing OEM Giant Revive battery?

it looks like there are two sets of pouches and the sense wires from each run back to the same spot on the BMS. measure them all there. either 7 or 8 pouches in series. Two sets of 7. Measuring the voltage on the sense wires when plugged into the charger, I get: 1. .422 2. .409 3. .253 4. .497 5. ....
by OctateZero
Aug 24 2013 7:38am
Forum: E-Bike General Discussion
Topic: Replacing OEM Giant Revive battery?
Replies: 13
Views: 3146

Re: Replacing OEM Giant Revive battery?

After looking at this circuit board, I was surprised at its complexity. Could battery management and the "brain" of the bike (speed governor, motor control, etc.) all be contained inside the battery pack? If so, I wonder whether it would ever accept anything other than this exact arrangement of cell...
by OctateZero
Aug 23 2013 7:40pm
Forum: E-Bike General Discussion
Topic: Replacing OEM Giant Revive battery?
Replies: 13
Views: 3146

Re: Replacing OEM Giant Revive battery?

I would like to see the inside of the pack since I believe the cells could be replaced with some of the newer 18650 cells by Sanyo or Panasonic or others. Thanks, Doc. I opened it up this afternoon. Here are pictures of the connector, the board, and the cells. Sorry about the sasquatch leg in the b...
by OctateZero
Aug 23 2013 2:37pm
Forum: E-Bike General Discussion
Topic: Replacing OEM Giant Revive battery?
Replies: 13
Views: 3146

Re: Replacing OEM Giant Revive Spirit Li-Ion Mn battery?

the only place I know that had many of these ebikes is http://www.electricvehiclesnw.com/main/contact.htm Thanks. I spoke with Electric Vehicles NW and they confirmed Giant no longer offers batteries (or any parts) for this model. After a night of research, that seemingly leaves me with three optio...
by OctateZero
Aug 23 2013 1:45am
Forum: E-Bike General Discussion
Topic: Replacing OEM Giant Revive battery?
Replies: 13
Views: 3146

Replacing OEM Giant Revive battery?

Hello everyone, first post. I recently got a fantastic deal on a never-used Giant Revive factory EB (AKA Spirit) gathering dust in a dealer showroom. The only problem is a completely dead original Li-Ion Mn battery pack. It probably hasn't had a charge in several years. Assuming that Giant no longer...