Mastodawn

kallisti5 Jul 27, 2022

Grooooan. koyu.space is shutting down. Going to have to move servers again.

kallisti5 Jul 24, 2022

I did away with the full BMS and opted for a simple LifePo4 battery balancer. The solar MPPT charge controller can use custom profiles so I can set a maximum charge voltage and a cut off. I'll need a low voltage cut-off to protect the batteries from getting over-drained, but I'm guessing I can rig something together cheaply for that.

Solar energy at the moment is intense, and my loads are not very heavy.

kallisti5 Jul 24, 2022

Alright, alright, alright. My baby off-grid #solar #lifepo4 #battery array can slowly charge my car. Batteries not even breaking a sweat at 95A draw. (About 0.5C rate).

kallisti5 Jul 22, 2022

https://www.theverge.com/23270191/framework-laptop-12th-gen-2022-review

Great job Framework! I've been really happy with mine! #laptop #devops #sre #tech

Framework Laptop (2022) review: promises kept

The upgradable thin and light gets 12th Gen processors.

The Verge

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kallisti5 Jul 15, 2022

#LiFePO4 balancing done. Just have to strap a BMS to the pack and hook her up to the off-grid #Solar MPPT array

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kallisti5 Jul 8, 2022

Alright. #LifePo4 cells matched and paired up. 2P done, next is 4S. Going to try and join them with a 200A ANL fuse.. just for extra "oh shit" safety 😂

kallisti5 Jul 8, 2022

If you're looking for something new, #throwing
#knives are a great way to burn some energy under a shady tree during the summer. It doesn't cost much to get into (< $20). As a side benefit you can pretend you're a ninja.

kallisti5 Jul 5, 2022

Just finished compressing my big ol' ~200Ah #LifePo4 12v battery bank. Now top balancing the cells.

Need to figure out a cheap way to wire them all together in a way that can handle 175A peak 🤔

kallisti5 Jun 10, 2022

Hm. I guess that's cool. #IPFS eInk dashboard strapped to a Raspberry Pi 4. Needs more work but basically functional. http://gitlab.com/kallisti5/epaper-ipfs