Help Trying to extend battery up to 10/15h possible?

[freno]

Hey guys, i'm new and i wanna start with a big thanks for this great forum that fill me up of good tips for my superpad.

I mount (the seller say so) 2400mah battery on my tablet, if i buy 1 or 2 extra battery like those OEM 3800mAh Battery For 10.2" ePad SuperPad & FlyTouch2 | eBay (to fit inside the keyboard case), and i connect to them a male plug (same to the one that go on the DC IN on the tablet)....what happen when i plug the 2 extra battery in the tablet?


Hope u can understand what i try to say....

 

[lfc4ever]

It gets very hot and may damage your tablet, imo DO NOT install 2 x batteries inside your tab.

Get a 6400 or 8o00 single battery and do it that way.

 

[dart16]

Hey guys, i'm new and i wanna start with a big thanks for this great forum that fill me up of good tips for my superpad.

I mount (the seller say so) 2400mah battery on my tablet, if i buy 1 or 2 extra battery like those OEM 3800mAh Battery For 10.2" ePad SuperPad & FlyTouch2 | eBay (to fit inside the keyboard case), and i connect to them a male plug (same to the one that go on the DC IN on the tablet)....what happen when i plug the 2 extra battery in the tablet?


Hope u can understand what i try to say....

Its not quite that simple. You can do as you suggest but you must ensure that the two packs(which consist of two cells each, in parallel) have very similar levels of charge before you connect them together (to make a 4 cell, 3.7volt 7.6Ah pack). You will also need a LiPo charger that will charge a single cell at about 7 amps or else it will take all day to charge!(this is a 5volt Flytouch we are talking about isn't it? not a 9volt one.) because the pack will be outside the FT3 and the charge regulation circuitry is inside the FT3.

A better choice might be one of the commercially available cell phone/ipad external 'emergency' chargers that come with their own charger. You will need to fit an appropriate plug and away you go.

Or

take a look at the model aircraft LiPos & chargers on Hobbyking