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Step 2Preparing the new battery pack
Now solder the new battery pack. Soldering of batteries is not the easiest task. Be shure not to put to much heat on them. Batteries don't like that. Use short soldering time, work slowly and let the batteries cool down.
All batteries need to be put in series. We like to get 7.2 V out of six batteries with 1.2 V each.
Put attention to the polarity of the batteries and the connectors. On the plastic case you can see a small + and a small -.
The new batteries fit exactly into the case. I used AA size batteries, NIMH with 2700 mAh capacity and 1.2 V cell voltage.
After putting everything back into the case, close it. Pay attention to the small guiding slids!
Fix it with glue.
All batteries need to be put in series. We like to get 7.2 V out of six batteries with 1.2 V each.
Put attention to the polarity of the batteries and the connectors. On the plastic case you can see a small + and a small -.
The new batteries fit exactly into the case. I used AA size batteries, NIMH with 2700 mAh capacity and 1.2 V cell voltage.
After putting everything back into the case, close it. Pay attention to the small guiding slids!
Fix it with glue.
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