I have a small project in mind, just want to find out is this a possible way to make a useful power pack rather then use this normal way [![enter image description here]]
to make a traditional E-bike power pack
I will use twelve QC 3.0 capable power banks to constantly supply 20V with around 0.9A, then I parallel them by joining 12 outputs into a thick copper wire.
Because the DC-DC step up converter can only handle 15 Ampere max input (10 Ampere if no cooling, so I choose limit to 10 amp )
step on converter specification: It can take in 16-60 Volt as input ( with max Current 15 Amp ) output voltage is 18-80 Volt with max current 10 Amp
If need more power, I might make another step up converter group or groups, later join both (or all 3) step up converters output before BMS ( battery management system )
[![enter image description here]]
- 500W motor will get electrical power from BMS :)
ok, now come some questions
- How do I ground the circuit? Do I need to ground the circuit? Is it necessary??
- If I use 2-3 step up converter groups, how should I deal with the grounding circuit problem?
- Do I need to put diode ? Especially just outside output of each power banks . If No need Diode , then I can save more energy :)
Do I need to put diode outside the step up converter ? I means in between steps up converter groups and BMS
Any other points that might stop the project from working ?