mirror of
https://codeberg.org/mclemens/qrz.is.git
synced 2024-09-16 03:28:16 -04:00
37 lines
1.1 KiB
Markdown
37 lines
1.1 KiB
Markdown
---
|
|
title: "Battery Pack Building"
|
|
type: post
|
|
author: micha
|
|
date: 2022-08-27T16:00:00+02:00
|
|
url: /battery-pack-building/
|
|
tags:
|
|
- DIY
|
|
- battery
|
|
---
|
|
|
|
I have inherited the following collection of battery packs, which were already at least 5 years old at this time:
|
|
|
|
|
|
|
|
Two battery packs should now be built from them: One as power supply for my Yaesu FT-817 during portable operation and another bigger one from the remaining cells. For this I took all packs apart, charged each cell and then measured their capacity. I also needed do order a spot welder kit for this.
|
|
|
|
After I received the spot welder kit, I assembled it and built the smaller battery pack (4s2p) of the two with 14,8V and a capacity of 6200mAh. Worked fine but I had to use a 100Ah battery as power source to make it actually weld.
|
|
|
|
The spot welder:
|
|
|
|
|
|
|
|
|
|
|
|
The battery:
|
|
|
|
|
|
|
|
|
|
|
|
Then I've built the bigger battery pack in a 4s6p configuration with 14,8V and a cpacity of around 12,5Ah:
|
|
|
|
|
|
|
|
|