Nissan Leaf Module, center tap.


MASSIVE restock of EV Batteries at www.batteryhookup.com 5% coupon "POWERWALLS"

ynot

Member
Joined
May 28, 2021
Messages
73
Am using Nissan Leaf Modules to power my etractor and a freighter trike, 5 modules in series makes a very good 36V battery, 36 volt chargers run up to 42 volts, I stop charging at 40 volts to preserve the modules, and ebike controllers are happy between 42 and 32 volts +/-.
Lots of ebikes these days are being advertised at 48 volts, which imo does not fit very well with 6s modules, what thoughts about using six and a half modules, using the center terminal and ignoring 1/2 of the module?
That would give me a peak of 52 v, right in line with the controllers and chargers used in 48 v ebikes.
I am not going to disassemble a module, and am too long in the tooth to begin welding up cell banks, I have the modules and am concerned that the center terminal on the module be strong enough to handle the 20 or 30 amp bike draw.
 

ynot

Member
Joined
May 28, 2021
Messages
73
Thanks for the response.
I have not looked at one but the chargers seem to be in the 52 - 54 volt range. Controllers seem to be relatively adaptable, my concern is for any damage to the module because of using 1/2 of the battery module.
 

Oberfail

Member
Joined
Jun 22, 2021
Messages
247
No the battery will be fine, but i'd try to use all cells possible to get the maximum Wh out of the pack, but just charge it at a slightly lower voltage instead to slow down the capacity loss per cycle even further.
 

J_Mack58

Member
Joined
Apr 7, 2021
Messages
145
6 and a half? If I have to carry 7 modules I would use all 14 cells and just charge to max the controller can handle. The cells will be happy you not even coming close to max charging them, should last a long time.
 
Top