Battery Holder for 10440 14500 16340 18650 20700 21700 26650 - Page 1
Forum section: electronics / beginners

author: JJ_023
author_rank: Frequent Contributor
timestamp: November 07, 2024, 11:30:23 pm
content: I'm asking the communities help in locating a battery holder that has a sliding spring clip to accommodate a whole range of batteries listed in the title.Most battery holders that I see for 18650 batteries are like the black one. That is not something that I want.I'm looking for something like the white one, but a holder not a charger. Something with an adjustable spring so it can be used with a wide array of different batteries and then has 2 wires to hook up to a bench power supply.As a last resort I can make one but the time involved is just not worth it.Any help and all suggestions are greatly appreciated. Thank you.

author: BILLPOD
author_rank: Frequent Contributor
timestamp: November 08, 2024, 01:49:30 pm
content: Good Morning JJ_023, How about cannibalizing that EBL charger that you show,or one similar.

author: JJ_023
author_rank: Frequent Contributor
timestamp: November 08, 2024, 02:01:22 pm
content: That is a great suggestion. I also have a machine shop so I can make my own. But the time that all of that takes is just not worth it. If something is commercially available it's probably going to be only a few bucks, I just can't find anything.The closest thing that I found is a 4 wire solution (see picture). It would definitely work but it's just cumbersome to use and has to be constantly adjusted. I just want a spring-loaded holder.

author: kripton2035
author_rank: Super Contributor
timestamp: November 08, 2024, 03:30:36 pm
content: this one is easyly adjustable, although it's not exactly what you're searching for...https://www.gamry.com/cells-and-accessories/electrochemical-cells/universal-battery-holder/

author: JJ_023
author_rank: Frequent Contributor
timestamp: November 08, 2024, 05:15:47 pm
content: Thank you for finding that. That is a very robust design. Made out of aluminum with ratcheting teeth for adjustment. They use a nonconducting bushing to separate the terminals. They incorporated a fuse holder. Connections look goldplated. It's a beautiful product for sure. Have no idea what it costs but it should be pricey based on all of that.However it's not for me. I prefer the simplicity of a sliding mechanism with a spring. Also this is bulky for the purpose that I am looking to use it for. I am looking for something the size of that holder without the board or any of the other attached peripherals.

author: kripton2035
author_rank: Super Contributor
timestamp: November 08, 2024, 08:20:37 pm
content: I've searched for that also, and did not find any ! the previous idea to buy a simple charger and reuse the battery holder part is the best so far.

author: J-R
author_rank: Super Contributor
timestamp: November 08, 2024, 11:48:07 pm
content: For just charging on the bench, I suggest using magnets. Sticks to the battery and the alligator clips.

author: JJ_023
author_rank: Frequent Contributor
timestamp: November 09, 2024, 01:33:38 am
content: Quote from: kripton2035 on November 08, 2024, 08:20:37 pmIt's funny you would think something like this would exist. If I go down that road I'll just create my own and machine it out of a nonconductive material with conductive inserts.

author: JJ_023
author_rank: Frequent Contributor
timestamp: November 09, 2024, 01:35:20 am
content: Quote from: J-R on November 08, 2024, 11:48:07 pmI think that's a great idea. I have actually used this in the past. I've even used rubber bands in a pinch. But honestly all I really want is just a spring holder.

author: MrAl
author_rank: Super Contributor
timestamp: November 09, 2024, 08:44:16 am
content: Quote from: JJ_023 on November 09, 2024, 01:35:20 amHello,I wanted the same thing many years ago but could not find anything similar. I ended up making my own.Some of the cheaper battery chargers with a spring loaded slide are cheaper maybe you can find a cheaper one to modify. It might be hard though to find something for all those battery sizes. I only needed a few sizes and it was hard to find and never found one, but that was some 10 years ago haven't really looked since then.

author: JJ_023
author_rank: Frequent Contributor
timestamp: November 09, 2024, 08:36:05 pm
content: Quote from: MrAl on November 09, 2024, 08:44:16 amIf nobody seems to be able to find them, including myself, I will just make one. Probably make it out of aluminum with insulating inserts. I dread doing this as I overcomplicate my designs and it takes me forever to finish.

author: MrAl
author_rank: Super Contributor
timestamp: November 10, 2024, 01:39:06 pm
content: Quote from: JJ_023 on November 09, 2024, 08:36:05 pmI made my with a strong wood base. 3/4 inch pine. You can make several on one piece of pine. Can't remember where I got the spring though.Just keep it simple, and do some good measurements first.

author: JJ_023
author_rank: Frequent Contributor
timestamp: November 10, 2024, 11:00:51 pm
content: Quote from: MrAl on November 10, 2024, 01:39:06 pmHey thank you for the suggestions. I usually will just model something in Solid Works first. Then if I like the design I will machine everything to the specifications I come up with.