bernardm

I have left units with a dead battery for a very long time. Like one year. In my experience, they always power up, assuming the unit is healthy.

Regarding the backup battery question mentioned earlier. A unit will boot up with a dead backup battery. This is very common with X5 units because they are non-charging batteries and many user would simply leave them dead. The thing is that a combination of a dead main battery and a dead backup battery will lead to data loss on the unit.

Many people use their x50/x51's just fine with dead backup batteries. It just means that their main battery needs attention and if they ever remove the main battery, there will be data loss.

bernard.

ronster22

Ok I took the x50 to a battery store today. They had a 2200 mAh replacement...

Plugged it in, still nothing. Checked with a volt meter, it was putting out 3.7v (ironically my old battery was putting out 4.1v)

Left it in my car for a while and it magically came on by itself?

It now shows 78% battery life and the backup battery is dead.

Very strange