vixr
500+ Head-Fier
- Joined
- Oct 14, 2005
- Posts
- 988
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- 24
Hey all,
I'm on my third set of NiMH batteries in the PPAv2 I built back in '05. I had to make some minor changes to the fast charging configuration to lower the upper max temp threshold to 112 F. These eneloop cells cant tolerate the temps the old green skin cells I had in there. These eneloop cells come fully charged, so it didnt take long to top em off.
Here is the board a few minutes after starting fast charge. The LM317 regulator is at 116 F... cells are cold
here it is after 35 minutes of fast charging, it just latched to trickle...cells are warm at 112 F
Fast charge in black hot...
I'm on my third set of NiMH batteries in the PPAv2 I built back in '05. I had to make some minor changes to the fast charging configuration to lower the upper max temp threshold to 112 F. These eneloop cells cant tolerate the temps the old green skin cells I had in there. These eneloop cells come fully charged, so it didnt take long to top em off.
Here is the board a few minutes after starting fast charge. The LM317 regulator is at 116 F... cells are cold
here it is after 35 minutes of fast charging, it just latched to trickle...cells are warm at 112 F
Fast charge in black hot...