96 volt pack to a 90 volt system?

mikelenis said:

hey there
this is my first post.
I found a 1991 colenta pick up, here in holland, the pack is 15 x 6volt/160Ah, 90 volt agm and it is sulfated. I need new batteries and began to think of a lithium conversion. The closest pack voltage i can find is 96 volt. Would the extra 6 volt difference fry the controller and motor?

specs : Controller - Curtis 1221
Motor - 90 Volt AC motor
11kW / 20kW (3min.)
137A / 300A (3min.)
Torque 35Nm

Is this enough info? or am I being to vague? please help with any insight, expertise or tips.

thanks mike lenis
1991 colenta in europe

Click to expand...

Others can chime in on this controller model as I'm not sure. It's unlikely that this will have any impact.
Remember a couple things...for one, the voltage numbers usually quoted are "nominal". A "12 volt" battery will be higher than 12 volts fully charged... pack voltages are usually quite a bit higher as a result.
Secondly, your nominal battery pack voltage can be any derivative of a single battery voltage. In other words, 28 lithium batteries each having 3.2 volts would be 89.6 volts. (of course parallel and series connections are done with Lithium to get voltage and Ah ratings)

Cheers,