or a 9v to 12v battery with 2 open ended metal wires
Step1
hello i guess your devices battery is not to old and you wanna know why you cant charge it anymore, well the thing is the bigger batteries always have to have a little juice in them , and you wont just let it drain all the way , you can never revive them with your regular plug in charger ,
Step2
you have to do what is called a basic jumpstart, you have probably witnessed or did one your self for your vehicle , unless of course you drive the latest and greatest car lol, but anyway it s the same procedure. with any data cable you can manage to achive this but you have to sacrifice that data cable buy cutting the wiring .
Step3
you have to make sure to cut the end that goes in to the device not the usb port , you will find four small cables, just pick the red and black , red is for + black is for - , now make sure they are open ended so you can connect them to your batterys golden prongs. now on your devices battery it should have the same labels (+, - ) well + will touch + ,, - will touch - .so wait for 10 minutes or so if you are holding these wires personally you should feel sum tingling electricity, but nottin much to kill u lol
Step4
voila hopefully it worked for you , it s the same procedure with the 9v or 12 v battery + to+ , - to - , needless to say ,now you didnt have to purchase a new battery or dont have to let the old one go