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RNB EX3000 Excalibur Charge voltage

Tony

Member
For those of you that use the RNB EX3000 battery for your Excalibur, can you recall what the battery voltage shows after coming off the charger?

My brand new pack read 12.15 volts which feels a bit low but I'm not sure. This equates to 4.16v per cell (3 cell pack).

Thanks.
Tony
 

Tony

Member
dewcon4414 said:
Mine reads 12.48.
Thanks for that.......RNB got back to me and said my voltage was normal and can fluctuate.

HH,
Tony
 

dewcon4414

Active member
Any battery can be OVER charged..... but quickly goes to normal under load. RNB keeps their battery at around 12dcv. I remember it was the same with the Explorer..... but amazing how long they last.
 

OldBeechnut

Active member
It has a BMS (battery management system) which is a small PCB that controls how much it charges to. It's limit is 12.6 volts.
 

Tony

Member
Thanks everyone.......I actually ran it for several hours and then after fully recharging, the pack read 12.35v so "fluctuate" it certainly does.
In future, I will most likely run the unit/battery for 30 hours and see what capacity is left (not that "voltage" is capacity).
I was also thinking that maybe the pack should be recharged out of the pod......heat build up/pressure a problem ??

Tony
 

OldBeechnut

Active member
Fully charged, your battery should charge to 12.60

Never a heat issue in the battery pod.
 

Tony

Member
Thanks OBN..........saves me opening the pod for recharging !
 
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