Hi,
I am trying to build my first DIY power bank for camping but not sure if my design is correct.
I am trying to be budget as possible since this is my first project.
This is the cell that Im planning to use
This is 13s 48v Panasonic cells and I am planning to parallel connect 4 of them.
I am planning to use this with 48v to 12v 30A Step Down converter so I can place 3 cigarette connector and few USB charging ports.
Now, here is tricky parts that I couldn't find answer.
1. Since I am planning to use 4 of 13s modules, do I need 4 BMS and connect them parallel?
Or Can I connect each terminal in parallel with single BMS?
(I am planning to use Daly 13s BMS)
2. To charge these cells, I am planning to use used Dell laptop chargers (19.5V).
If I connect charger directly to BMS, will it charge? or do I need to put 48V source?
I know my design is not well optimized, This is due to I dont have any equipments yet and Im trying to stay away from spot welding.
Bottom line is, I want to utilize 4x of 13s panasonic cells to make 12v power bank
I am open to any suggestions so please help me!
Thank you so much
I am trying to build my first DIY power bank for camping but not sure if my design is correct.
I am trying to be budget as possible since this is my first project.
This is the cell that Im planning to use
PANASONIC 48V POWER MODULE 13S 6.4A 299.99WH
These are absolute BEAST Panasonic power modules. Built for power. These modules have 52 cells inside. They are rated for 300w and every module we tested has tested above that capacity. The test of the module is in the 3rd photo. Since these were used as backup only they likely have never been...
batteryhookup.com
I am planning to use this with 48v to 12v 30A Step Down converter so I can place 3 cigarette connector and few USB charging ports.
Now, here is tricky parts that I couldn't find answer.
1. Since I am planning to use 4 of 13s modules, do I need 4 BMS and connect them parallel?
Or Can I connect each terminal in parallel with single BMS?
(I am planning to use Daly 13s BMS)
2. To charge these cells, I am planning to use used Dell laptop chargers (19.5V).
If I connect charger directly to BMS, will it charge? or do I need to put 48V source?
I know my design is not well optimized, This is due to I dont have any equipments yet and Im trying to stay away from spot welding.
Bottom line is, I want to utilize 4x of 13s panasonic cells to make 12v power bank
I am open to any suggestions so please help me!
Thank you so much