Yes, that's a Chargery BMS.@Steve_S Do you know if Jason's Chargery BMS the same one being sold at electriccarpartscompany.com? It certainly looks the part.
Doug
How many amps are you expecting to pull?
DW SD shows how to use a single large relay and a small low amp relay in this thread on the previous page. Perhaps you could use this method.I am aiming for a system that can support a 2000 watt inverter. So call it 200A.
Can the Chargery be configured to actuate a single relay rather than separate charge and discharge relays? i.e. if I purchase a particularly expensive relay, like a Blue Sea 7713, and i want to avoid buying 2 of them, and am willing to deal with common disconnect behavior, can the Chargery support that configuration?
2000W ÷ 12VDC = 166A @ 24VDC = 83.3A
Each relay serves a specific use. Discharge Relay for cutting off LVD and Over/Under Temp Charge Relay for Charge control to prevent over charge & temp issues. Both Relays dropped when Over / Under temp condition occures.
That is a clone of this kilovac contactor.Uses .13 amps and is good to 500 Amps I bought from this vendor and tested.
You can use small SSR wired to inverter switch to turn inverter on and off this would have less than 1 amp current draw on the load and .01 Amp on the control side.I'm building a 12v system - so yes, 167A minimum. Although, if I could get the Chargery to just turn the inverter off rather than switching that load, then i can look at the next highest load - which is a 1000W 12v DC motor - so maybe 85A... with startup transients... so maybe size for 120A.
No, the Chargery relay's that I have, pull .58 amps "But the surge at turn on" from the BMS causes a system reboot. This is using the battery for power. My system is BMS8T. There is a warning in the manual. The need to run external power. The Contactor from eBay Has the economizer built-in and works without rebooting the BMS.So these relais work exactly like the ones you can order with the Chargery BMS? I thought you need some external components since it said it needs an external coil economizer in the data sheet .
I am unfamiliar with this problem could you give more details as to what is surging etc etcNo, the Chargery relay's that I have, pull .58 amps "But the surge at turn on" from the BMS causes a system reboot. This is using the battery for power. My system is BMS8T. There is a warning in the manual. The need to run external power. The Contactor from eBay Has the economizer built-in and works without rebooting the BMS.