72 volt cut out???

[mikebikerad]

Im using two ping 36 volt 15 amp/hr packs in series. Also building a 60 volt 20 amp/hr currently on one of my old downhill bikes. Ping will sell the new bms seperately to make older ping packs usable in series more easily. Pretty nice.

 

[dnmun]

is your controller designed to work at 72V? if it is a 36V controller you will need to make some changes. you cannot simply switch packs from 36V to 72V on the controller. it is a waste of a perfectly good controller and can leave you stranded when it blows up.

 

[mikebikerad]

Nope, It a 72 volt controller. :|

 

[dnmun]

is the controller also designed to operate at the 36V level too?

the 72V controller upgrade i did had to use a 53V LVC and anything below would deactivate the controller. to protect the controller from low voltage at the input.

http://www.endless-sphere.com/forums/viewtopic.php?f=2&t=10222

 

[mikebikerad]

Its just a 72 volt controller I believe