I replaced the H10s i had with K10s. Haven’t had any problems with them, nor did i have problems with the H10s but did it to stay safe.
I find myself using the F15 in my d3aa, and NiMH in the KR1AA. Granted, I have turbo disabled in the d3aa.
Definitely the H10.
I had something similar happen last year. I noticed a light that wasn’t on was almost too hot to touch. Opened it up and dumped out the VERY hot H10 cell.
Fortunately, the cell eventually cooled down after which it was non-functional. I think the internal PTC triggered and prevented the cell from exploding.
It’s good advice to get rid of any newer H10 cells. They have problems.
Those self-destructing cells are scary. I’m glad I don’t have any.
Would be nice to have some newer 14500 cells though. Some recent models have 1400+ mAh capacity. And that’s more than double the energy in the Eneloops I’ve been using…
- 1400 mAh * 3.6 V = 5040 mWh (li-ion)
- 1900 mAh * 1.25 V = 2375 mWh (Eneloop)
Plus, these boost lights should be a bit more efficient with li-ion since it doesn’t have to boost as far.
So I could be getting more than twice as much runtime per charge, with a newer battery.
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My Vapcell F15s say “1500 mAh” on the side. No idea how accurate that is, but they seem to work well.
Yup. I’ve heard they measure about 1400 mAh in practice, so that’s the number I used. Total energy should be somewhere around 4600 to 5500 mWh, depending on the shape of the discharge curve and how deep you discharge it.
For Eneloop, HKJ has several tests. Looking at the model I have, he measured about 2380 mWh.
The numbers are all pretty approximate, but the overall gist is still the same – a recent li-ion 14500 holds about twice as much energy as an Eneloop, and would greatly increase the time between charges. I should maybe get some sometime, but I have this whole pile of Eneloops waiting to be put to use…
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