Second Hand or Refurbished 3490
OT
I think that the Li-Po battery damaged your 3790, Li-Po batteries are not exactly the same as Li-Ion Batteries. (Charge Faster @ Higher Current 3.7 Volts per Cell)
Maybe the Power Supply Circuit was overloaded momentarily by the stronger battery and caused enough damage for it to shut off.
I have verified that the correct battery for 3490/3790 and 1xxx is 3.7V Li-Ion Battery.
[Only registered and activated users can see links. ]
Picture credit to Loly
Bookmarks