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Old 03-27-2011, 08:55 PM #1
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Default Recharging Li-Ion Battery Pack

Hey everyone.

So I am working on my boxy 445nm, and I need to figure out a way to not have to remove the batteries (two 18650s) in order to recharge, because just changing batteries is kind of obnoxious.

Is there a way that I could just take my home-made battery pack and just plug it into a single 18650 charger and get twice the charge time? The idea is that the charger is a smart charger, so it wouldn't damage them, but it is only built for a single 18650. It lets of 4.2V at 650mA, which is great for charging one... but is it safe to charge two 18650s in series?

I know I could charge them in parallel easily, but then the question is, how do I charge in parallel and then switch it to a series to run off of?

Questions, questions, questions... anyway, help please!

(The reason for this is so I can just completely close off my battery pack because the front end keeps on falling off.)


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Old 03-27-2011, 09:07 PM #2
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Default Re: Recharging Li-Ion Battery Pack

No, they would need to be charged in parallel. I'm sure it can be done with some fancy toggle switch work.
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Old 03-27-2011, 09:14 PM #3
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Default Re: Recharging Li-Ion Battery Pack

Hmm, alright. I will begin work on it.
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