Hi Everyone,
I read this old post:
http://forum.allaboutcircuits.com/threads/charging-2x-10-eneloop-12v-4-000-mah.72246/#post-504454
And although it answers most of my questions, I just want to make things "safer" and get an updated opinion on this subject.
I am planning to wire 10x AA NiMh 3,200mAh (1.2v) in series to make a power supply of approximately 12v, I spent lots of hours reading about recharging different types of batteries (which drove me off my original "project" with li-po batteries...) so I am aware that there's no cheap/easy way of charging NiMh in series perfectly, so my objective is finding the safest and less battery-harmful solution.
I was thinking that, if I have a 12v 300mAh DC charger, can I "safely" use it to charge the battery "pack" all-together for a controlled period of time (6 - 8h)? I know that it will reduce the battery life-time but that is not very important to me because I only plan to charge them about twice a month, just want to know if it's doable without a huge risk.
By the way, the charger is from Sony (probably from an old gadget that died some years ago) so it's safe to say that I can connect the 12v charger directly to the battery "pack" terminals? Would you recommend a power supply with a voltage a bit higher (15v for example) or this 12v one would be fine?
PS: It's important to say that I would test the batteries one by one before the first charge to make sure they were at the same voltage (+/- 0.1v).
I'm kind of a Noob on this so don't go easy on me, I like to learn and that's why I'm posting this thread.
Thanks.
I read this old post:
http://forum.allaboutcircuits.com/threads/charging-2x-10-eneloop-12v-4-000-mah.72246/#post-504454
And although it answers most of my questions, I just want to make things "safer" and get an updated opinion on this subject.
I am planning to wire 10x AA NiMh 3,200mAh (1.2v) in series to make a power supply of approximately 12v, I spent lots of hours reading about recharging different types of batteries (which drove me off my original "project" with li-po batteries...) so I am aware that there's no cheap/easy way of charging NiMh in series perfectly, so my objective is finding the safest and less battery-harmful solution.
I was thinking that, if I have a 12v 300mAh DC charger, can I "safely" use it to charge the battery "pack" all-together for a controlled period of time (6 - 8h)? I know that it will reduce the battery life-time but that is not very important to me because I only plan to charge them about twice a month, just want to know if it's doable without a huge risk.
By the way, the charger is from Sony (probably from an old gadget that died some years ago) so it's safe to say that I can connect the 12v charger directly to the battery "pack" terminals? Would you recommend a power supply with a voltage a bit higher (15v for example) or this 12v one would be fine?
PS: It's important to say that I would test the batteries one by one before the first charge to make sure they were at the same voltage (+/- 0.1v).
I'm kind of a Noob on this so don't go easy on me, I like to learn and that's why I'm posting this thread.
Thanks.