18500 Li-ion Battery adapter to replace 3 x AAA cartridge
Description
This Is An Adapter You Can Put An 18500 _Rechargeable_ Battery (Or Even An 18650 Cell) Into So That It'S Snug In The Place Of A 3 X Aaa Cartridge, Like In A Lot Of Led Flashlights. The Lower Battery Voltage (3.7 For Li-Ion Vs. 4.5V For Alkaline) Is Pretty Much Offset By The Lower Internal Resistance Of Lithium Electrochemistry, So The Flashlight Appears Just As Bright. Electrical Safety Is Up To You; Don'T Use This If You Don'T Understand The Risks. That Being Said, I Haven'T Had Any Issues With This In A Utilitech Flashlight I Got At Lowe'S Home Improvement, Similar To The One In The Photo. Edit: 3D Print Pictures Up, Check 'Em Out. Note: It Is Designed For A 22Mm Inner-Diameter Cylinder; I Found That It Is A Bit Snug For Precisely 22Mm (Difficult To Remove, And You Want To Remove A Rechargeable Battery); I Might Redesign It For A Little More Flexibility. I Added A New Version; It'S 45Mm Tall; As Always, You Can Adjust Z-Height In Makerware To Whatever You Need. I Also Included A Couple New Pictures.
Statistics
Likes
24
Downloads
0