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AA Battery Pass Trough

by trazor, published

AA Battery Pass Trough by trazor Apr 22, 2013

Description

I use it when charging only 2 batteries in a 4 battery charger but you may need it for others purposes. Add comment.

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Neat, many years ago I created a dummy battery using some rolled up paper, tin foil and tape for isolation....
In the meantime its a new century and 3D printers are now commonplace :)

My intended use for this thing is with programable "hobby grade RC" chargers like this http://hobbyking.com/hobbyking...

Please take care if using with "consummer grade" chargers, You can initiate a fire.

If they are in parallel, yes. However, this is bad for batteries that are not matched, as one will be overcharged and the other undercharged. Unfortunately, a large percentage of the commercial 4 battery chargers work this way anyway. And if you use this with a 2 cell charger that doesn't charge the cells separately, you'll now be charging 4 unmatched batteries together.

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talpa on Apr 22, 2013 said:

Neat, many years ago I created a dummy battery using some rolled up paper, tin foil and tape for isolation....
In the meantime its a new century and 3D printers are now commonplace :)

Robo on Apr 22, 2013 said:

Just for my understanding: Do you charge the 2 batteries up to the same voltage as four?

trazor on Apr 22, 2013 said:

My intended use for this thing is with programable "hobby grade RC" chargers like this http://hobbyking.com/hobbyking...

Please take care if using with "consummer grade" chargers, You can initiate a fire.

ssd on Apr 22, 2013 said:

If they are in parallel, yes. However, this is bad for batteries that are not matched, as one will be overcharged and the other undercharged. Unfortunately, a large percentage of the commercial 4 battery chargers work this way anyway. And if you use this with a 2 cell charger that doesn't charge the cells separately, you'll now be charging 4 unmatched batteries together.

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