harrisonpatm
Member
- Joined
- Jan 5, 2022
- Messages
- 360
I'm assembling a higher-current charger for my bike for faster charging. Based around an 1800w boost converter, which I will only be taking to 1400ish watts, for headroom. Protections already in place:
-I've reliably and frequently tested the overvoltage protection on my battery's BMS, it cuts off charging at the first sign of cell-level overvoltage.
-Fused at both the input and and output of the boost converter.
-I've tested the boost converter, and it stops delivering current once the battery comes up to its set voltage
Despite all that, I would still like one more level of protection. So, does anyone have a recommendation for an overvoltage relay switch? I would like it to be in line with the boost converter input, and reading the output voltage. Therefore, if output voltage goes above the set parameters, it will switch off the input side.
My system is 24s LFP, and I will be setting the charging voltage at 84v, so I would like to be able to set an overvoltage relay to 85v. My searches so far have only shown me protection relays in the sub-30v range. I'm planning on less than 20 amps of current. Thanks in advance.
-I've reliably and frequently tested the overvoltage protection on my battery's BMS, it cuts off charging at the first sign of cell-level overvoltage.
-Fused at both the input and and output of the boost converter.
-I've tested the boost converter, and it stops delivering current once the battery comes up to its set voltage
Despite all that, I would still like one more level of protection. So, does anyone have a recommendation for an overvoltage relay switch? I would like it to be in line with the boost converter input, and reading the output voltage. Therefore, if output voltage goes above the set parameters, it will switch off the input side.
My system is 24s LFP, and I will be setting the charging voltage at 84v, so I would like to be able to set an overvoltage relay to 85v. My searches so far have only shown me protection relays in the sub-30v range. I'm planning on less than 20 amps of current. Thanks in advance.