I am wanting to build a 6 volt rechargeable battery pack out of 5 , 1.2 volt standard rechargeable NiMH AA batteries.
I plan on attaching them all in a voltage tandem (voltage would be 1.2 x 5 battries and mAh is averaged between the 5 batteries. May main question in if I could simply solder a bare copper wire between the - and + ends of the batteries, ending up with one - and one + pole for all 5 batteries. It seems common sense that If I leave the soldering iron on the battery too long it would rupture (bad
Any thoughts on how to do this?
On a side note, 4 of these batteries are Energizer and the other one is Duracell. They are all NiMH and the only differences are the brand and the Duracell is 300 mAh lower then the Energizer. Would the only side effects of this be dropping the average mAh from 2300 mAh (would be if all Energizer) to 2240 mAh (The 4 energizers and the duracell)