Other Parts Discussed in Thread: GPCCHEM, BQ27Z561
Hello guys,
I've recently tried to design a BMS for LTO(Lithium Titanate Oxide). Actually, I asked once in E2E forum before and got some comments I need to show tested data.
A test sequence is done for GPC(Gauging Parameter Calculator), according to SLVA725A doc. But the result of the online GPC report says the deviation is higher than 47% with bq27411.
I want to find out the right solution for 5S LTO battery pack system including some protection functions, balancing features, and gauging.
Here's cell info:
- voltage range: 1.5V-2.8V
- nominal voltage: 2.3V
- Max. discharge current: 50A
- Max. charge current: 30A
And here's the result of charge-dischage test.