18650 Battery Holder with spring contacts
Description
Here a great little 18650 battery holder. It uses battery contacts available on AliExpress: [18650 contacts](https://www.aliexpress.com/item/Free-delivery-100pcs-18650-battery-pack-15-18-14-33-spring-contact-piece-battery-box-positive/32813127196.html) The batteries I use have flat tops. If you have any suggestions, please leave a comment.
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