News

18650 Lithium-ion battery packs – 1S80P

🇩🇰 · Hal9k · Mads Chr. Olesen

This is the considerations I did when building 1S80P 18650 battery packs, for a DIY powerwall. My design will go for 14 of these packs in series, for a nominal 48V system. I wanted a design that was: Very hard to short circuit, individual cell fuses, and generally as safe as possible Mechanically stable Balanced […]

ExternHAL9kPlanets

Olimex A20-OLinuXino-LIME2 – A review after 4 years in service

🇩🇰 · Hal9k · Mads Chr. Olesen

Last week my A20-OLinuXino-LIME2 one board Linux computer quit working, with a power supply issue. I looked up when it was purchased, and realised it had been in 24/7 service for almost 4 years. I guess that is a good excuse to do a little review. It even turned out that it the board was fine, but the AC-DC […]

ExternHAL9kPlanetsSysadmin'ing