Baofeng UV-B5/B6 18650 Battery
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This is a replacement battery for Baofeng UV-B5 and B6 (type BL-B), expanding capacity with two 18650 protected cells.
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Model information
- Source
- Printables
- Category
- Electronics
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
The original battery (model: BL-B) for the Baofeng UV-B5 and UV-B6 dual-band radios have small capacity and is hard to find replacements for, so I made a battery case that holds two 18650 Li-ion cells with protection circuits and/or built-in USB charger (i.e. the 70 mm long versions). It requires three AA 26.5 mm dual battery contacts, two of which are cut to size and bent over to act as the radio contacts. It is advised to cover the battery contacts with insulating tape where they could come in contact with the metal heat sink of the radio. This battery required no modifications to the radio, but because of the larger cell size, the battery latch needs to be held back while inserting the battery and the belt clip has to be removed or extended out with the supplied spacer. I printed the part in clear resin using a SLA printer, oriented standing up with supports for the battery compartment.
Source code (.stp & .3dm) is also provided, should you want to modify the design for your own purpose. Please share your prints!