Emmanuelnlopez
New Member
- Joined
- Dec 29, 2022
- Messages
- 11
Ok, so I found this. https://www.aliexpress.us/item/3256804906372669.html Really cheap LiFePO4 batteries. 70 bucks for 400Ah. Thing is, I don't want to burn to death. So, just how bad can someone make a battery? Is there a limit to how bad a battery can be? Are they lying? How do I get a good cheap chinese LiFePO4, you know without dying for it?
Do LiFePO4 batteries need charge balancing when their in series? I plan on making my own BMS so I don't really care about safety circuitry, because I'm going to add it myself. However if the cells themselves can be made badly then that's a different story.
1) Where to do I get good cheap Chinese Lifepo4 batteries?
2) Do 4s LiFePo4 Batteries need charge balacing?
3) Just how badly can someone screw up making a cell?
Here's my price table for Aliexpress.
$37.81 / 200Ah = 0.189 $/Ah Aliexpress 3256804906372669
$66.22 / 240Ah = 0.276 $/Ah Aliexpress 3256804906384519
$28.50 / 120Ah = 0.236 $/Ah Aliexpress 3256804906347613
$80.62 / 100Ah = 0.806 $/Ah Aliepxress 3256804906354611
$60.77 / 240Ah = 0.253 $/Ah Aliexpress 3256804906305903
$75.62 / 310Ah = 0.244 $/Ah Aliexpress 3256804906350661
Do LiFePO4 batteries need charge balancing when their in series? I plan on making my own BMS so I don't really care about safety circuitry, because I'm going to add it myself. However if the cells themselves can be made badly then that's a different story.
1) Where to do I get good cheap Chinese Lifepo4 batteries?
2) Do 4s LiFePo4 Batteries need charge balacing?
3) Just how badly can someone screw up making a cell?
Here's my price table for Aliexpress.
$37.81 / 200Ah = 0.189 $/Ah Aliexpress 3256804906372669
$66.22 / 240Ah = 0.276 $/Ah Aliexpress 3256804906384519
$28.50 / 120Ah = 0.236 $/Ah Aliexpress 3256804906347613
$80.62 / 100Ah = 0.806 $/Ah Aliepxress 3256804906354611
$60.77 / 240Ah = 0.253 $/Ah Aliexpress 3256804906305903
$75.62 / 310Ah = 0.244 $/Ah Aliexpress 3256804906350661