raresserban
10 µW
- Joined
- Jun 17, 2020
- Messages
- 6
Hello, I am new to this whole battery world
I am building a 5S2P battery pack for TPA3116D2 amp. I have a CC CV Step-Up board to charge it and a BMS. The amp will be directly connected to the BMS.
I want to increase the capacity (and run time) of the amp. I was thinking of connected a USB power bank to the CC CV board to charge the battery through the BMS.
The problem is that a standard USB power bank outputs 5V2A. So that is 10W. If my amp draws ~50w, my battery will still deplete quite fast.
I was thinking of using 2 USB power banks in parallel, so if they each provide 5V2A, that would be 20W, but from what I read it wouldn't work quite like that and I want to understand why.
I was thinking of connected the USB power banks to the CC CV board through diodes so they don't send power to the other bank (in case they don't have internal protection) and maybe a capacitor to smooth the output (but I believe this should be handled by the CC CV board).
Why wouldn't this work like I expect, to get more than 2A/10W charging?If both banks are full and output 5V, shouldn't it work like this?
Thank you and I hope this is the right section for this
I am building a 5S2P battery pack for TPA3116D2 amp. I have a CC CV Step-Up board to charge it and a BMS. The amp will be directly connected to the BMS.
I want to increase the capacity (and run time) of the amp. I was thinking of connected a USB power bank to the CC CV board to charge the battery through the BMS.
The problem is that a standard USB power bank outputs 5V2A. So that is 10W. If my amp draws ~50w, my battery will still deplete quite fast.
I was thinking of using 2 USB power banks in parallel, so if they each provide 5V2A, that would be 20W, but from what I read it wouldn't work quite like that and I want to understand why.
I was thinking of connected the USB power banks to the CC CV board through diodes so they don't send power to the other bank (in case they don't have internal protection) and maybe a capacitor to smooth the output (but I believe this should be handled by the CC CV board).
Why wouldn't this work like I expect, to get more than 2A/10W charging?If both banks are full and output 5V, shouldn't it work like this?
Thank you and I hope this is the right section for this