Ham Radio Battery Pack DIY LiFePO4 | Vruzend kit

Hello Operators
Portable power is always a popular topic on the channel. So today we are building a 12v, 4S4P, Lithium LiFePO4 battery pack using 18650 cells and the Vruzend battery kit.
The DIY 18650 battery pack is very popular. We can choose lithium Ion, or Lithium Iron phosphate 18650 cells for our build. Most 18650 project use li-ion cells, but we will be using LiFePO4 cells for this build.. Repurposed or purchased new, these lithium and lithium iron phosphate cells are a popular choice for diy power banks, solar generators, or other battery projects. One of the biggest problems with diy building 18650, battery packs is damage caused by overheating cells with a soldering iron. An often overlooked fact of 18650 building, is they were designed to be spotwelded, not soldered. The Vruzend kit solves this problem by using polymer end caps on the 18650 cells. These end caps are removeable, replacable, and allow the builder to make custom packs in varous shapes and sizes.
This diy battery build uses LiFePO4 cells in 18650 format. if you would like to use Lithium ion cells, you might want to use a 3S4P configuration, to achieve a roughly similar 12v battery result. Lithiun Iron Phosphate cells are much safer than Lithium ion cells. For the maker wishing to build a 12v battery pack, the LiFePO4 cells offer a nearlly one to one replacement over lead acid batteries.
You can consider this build a kind of DIY Powerwall for your pocket.
73
Julian #oh8stn
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