[BogdanT]

Coming back to the topic at hand, I am also in the design phase of a Chevy Volt pack split in 2. And I am considering the following:

• 2 parallel strings 48S3P
• each string with contactor
• string contactors commanded by charger&BMS
  • Charge Cycle - contactors closed, single charger for both strings
  • BMS command - stop charge & open contactors when first cell reaches top charge setting
  • Balancing cycle - both contactors open.

 

[brian_]

Sorry guys, I swear I saw a 6S in parallel with a 12S. But there's no such thing, so I should probably stop posting before I have my coffee in the morning.

Been there, done that!

 

[brian_]

A thread about reconfiguring Volt packs and this one about reconfiguring a Volkswagen e-Golf pack are getting mixed up; blame me for that, as I borrowed swoozle's wiring illustration from the Volt thread for use here.

Although the e-Golf pack has many more modules, and the modules are consistent (unlike the Volt), the rest of the considerations are similar.