Kick-starting a flat battery

Wanna get it how to resurrect a mobile device with completely flat battery? Here you'll get it!

Sometimes we use the mobile devices until the battery goes completely flat; so flat normal charging is not possible. However, the solution is simple if you can be able to open the device, access the battery terminals and isolate at least one of terminal from the device. There, you'll be able to charge it using dry cells. Here is an example how I did it on an Archos 10.1 Cobalt 3 tablet.

Fig: Disassembling Archos tablet; remove screws on one side and then pry it off; it feels like you are going to break it but that's how it is, just proceed prying it!

Fig: Terminals exposed (see in an orange circle). Remove them using soldering iron and charge them directly with three 1.5V dry batteries for roughly 15min.

Fig: The Archos is back to life!

The trick didn't work for this Tecno, because ;