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You can get lithium ion rechargable AA batteries these days. They have a built in regulator to drop the voltage to 1.5V. Some of them even have micro usb ports
by rabf 5y ago
You can get lithium ion rechargable AA batteries these days. They have a built in regulator to drop the voltage to 1.5V. Some of them even have micro usb ports on the side for charging.
- walrus01 5y agothere are even USB-C ones now for people who have less microUSB 5VDC charge cables hanging around their home...