Alfred Blog

lead acid Tag

I have realized that lead acid battery is way too heavy for Alfred's body. However, I have to make a comparison and find a better way to have high density battery. Also price is another concern. I have made some tests and concluded the battery comparison chart below: Wh/kg Wh/l Wh/$ Lead Acid 33,4 97 3,6 NİMH 101 400 0,72 Lipo 161 385 0,9 Li-Ion 212 551 1,38 3S4P Li-Ion battery set will need to be regulated to 5 volts. I also created below diagram to reduce...

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I was thinking of, how to charge batteries of Alfred. Suddenly I have realized that my old and probably dead computers psu can help me. If you think it supplies constant 12 volt for long long time. Maybe i can tune it make it work for Alfred for some time also. These batteries have 6 cells, each are 2.2 volt meaning fully charged battery will be around 13.2 volt. So I may need to modify the power supply a bit.





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