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XPR8400 Battery Backup

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deanq

Member
Joined
Jun 19, 2016
Messages
16
I'm looking at a battery backup for an XPR8400 repeater. It has a built in DC charger for a standby battery but, is the voltage adjustable at all? Mine is a constant 13.78 VDC. At that voltage, any lead acid batteries will boil dry in short order. There doesn't look to be any adjustment.
Does anyone have any experience with this?
Thanks
 

cmdrwill

Member
Joined
Mar 30, 2005
Messages
3,302
Location
So Cali
There is a internal back up battery circuit in the repeater. Do you have the service manual?
 
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