I got some Baseline cells from Amazon. Rated 600mAH, but seem to consistently rate just a shade under 500mAH (480-490) on my almighty Miboxer.
Seem to be pretty decent otherwise.
Also, keep in mind to compare energy, not current. So 500mAH at 3.2V is 1600mWH. The equivalent of a NiMH would be 1600mWH / 1.2V or around 1300mAH (vs 2000mAH for eneloops).
So NiMH has higher energy density (and so has longer runtime), but LFPs can be (sometimes lots) cheaper.
Thing is, NiMH cells always have to work harder, converting 1.2V to the 3.whatever the LED requires. So 1A to an LED means like 2.7A minimum from the cell. With LFPs, the voltages are almost equal, so a “mild boost” is all that’s needed. 1A to the LED means only 1.1A or so from the cell.
Cheaper lights with cheaper boost drivers drive the LED proportionally from the input voltage, so what’s decent with an alkie or NiMH will be on constant turbo with an LFP cell.
I like both, so… Just pick whatever you want, or better yet, just try some of each.
