The article briefly mentions using them with rechargeable batteries. While I'm sure the boost to 1.5V allows more devices to use the rechargeable batteries, I'd

The article briefly mentions using them with rechargeable batteries. While I'm sure the boost to 1.5V allows more devices to use the rechargeable batteries, I'd be concerned about over-discharging [1] NiMH batteries. [1] https://en.wikipedia.org/wiki/Nickel%E2%80%93metal_hydride_battery#Failure_modes https://en.wikipedia.org/wiki/Nickel%E2%80%93metal_hydride_b...