If you already purchase the 80A bms just use it. Overkill is not bad or anything if anything its a good thing cause things then run cool. Heat is wasted energy and just damages things. Also I do not get the BMS paragon is selling. It is only rated for 20A continuous. For e-skate 40 amp is the bare minimum. 60A will work for everything and 80A also would work just as well if not better.
I would feel bad if you got a new BMS even though it would work perfectly fine.
Yea if you already have a bms it’s no problem. Just know you can go smaller and be fine. Paragon’s bms is a good choice too if you bypass it for discharging.
Great! Again there is no need to downgrade to 60A unless you want something a little smaller. Overspecing your board will make it last longer in the end
Just wondering if anyone knows the BMS’s charging procedure when charging these li-ion cells. For example can it regulate the inputted voltage and amperage so that you’re not frying your battery, and does it balance each cell while charging like a normal hobby battery charger would? BMS’s seem very convenient but if they’re charging the battery in an incorrect manner I wouldn’t want to use one.
Most BMS’s work by charging from a single source and measuring voltage across each cell as it’s charging. Once it hits the balance voltage (about 4.18v) it will switch to a lower balance charge current which will keep all cells in balance. You’ll want to read the documentation on the BMS you’re interested in to make sure it fits your needs.
Hello i’m trying to do a 10s lipo pack with two 5000mah 5s batteries and wire to the bms for easy charge. So i need help to how i can wire the batteries with the bms and a swithc on and off.
Can you help me with some pictures or examples that you made…
You’ll need a BMS with an e-switch. Wiring is dependent on the BMS you get, so how 1 person does it may be different than how another does it. Check here for examples.
So let’s say I have a 8s pack with bms that is fully charged at 33.6v and I input 36v. Will this over charge my batteries or is the bms able to regulate the voltage and not over charge the batteries? Also does a soft switch work as an anti spark switch?
Check the BMS datasheet, but it should prevent your individual cells from going beyond the specified voltage. An e-switch would negate the need for an anti-spark switch.