best rechargeable batteries for flashlights UltraFire 18350 Battery 1200mAh 3.7V - 2 Pack AC KEEP IT LIGHT BACKPACK Kids' Burton Family Tree Kobalt 375 Lumen Pen Color:Starlight Pony

best rechargeable batteries for flashlights UltraFire 18350 Battery 1200mAh 3.7V - 2 Pack AC KEEP IT LIGHT BACKPACK Kids' Burton Family Tree Kobalt 375 Lumen Pen Color:Starlight Pony

Kids' Burton Family Tree Hometown Hero Snowboard - Earth / 130

The only downside I can speak to for this flashlight is that its 18650 Lithium-ion rechargeable battery is a proprietary design, so you can’t use other 18650 cells with ASP lights

AC KEEP IT LIGHT BACKPACK

Color:Starlight Pony

It was consistent throughout the testing, earning two and a half to three and a half stars in every segment, with a stand-out performance on Noise Isolation

Kobalt 375 Lumen Pen Light Replacement Battery