New design for higher battery density…
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 the voltage from 12 V to 5 volts.
I think this power system will support the Alfred’s RPI systems. Next step is to design the battery charge / discharge module for Li-Ion. In a way back to square one from charger perspective.
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