The EG4 400AH 12V battery from Signature Solar is a beast at first glance. Its well put together but lacks the delivery you would expect with such a big battery. The documentation provided by Signature Solar shows a circuit breaker on the battery face. There isn't one on the battery they sent me. The same documentation talks about the bluetooth monitoring of the battery. Mine didn't come with bluetooth. Nobody at tech support mentions bluetooth, they just keep asking me to plug in the ethernet cable and connect it to my laptop. I have to rely on my Victron Shunt to give them any usage info. Despite these short comings and false statements I was so impressed by the build quality and @Will Prowse recommendation I decided to try it. It may look like a beast but performance is more like a pussy cat. Maximum discharge rate according to SS own specs is 200 amps, yet they throttle it with a wimpy 100 amp BMS. Really? Who does that. Its like getting a bottle of water with a pinhole to drink from. A 400ah battery that only has an output of 100amps.
I spent a week trying to figure out why my Victron Multi II 2x120 kept putting the battery into a fault. Finally I look at the specs an find out they used such a small BMS that if my inverter is at 50% capacity, it will put the battery into protect mode. Let me check the battery status using the bluetooth app, nevermind it didnt come with bluetooth.
I purchased from Signature Solar assuming a US based company would be "better" than dealing with someone offshore who just says return it, pay the shipping or buy another one. Here is the kicker, the solution provided by Signature Solar is return the battery (pay for shipping) and pay a restocking fee, or buy a second battery with a grossly undersized BMS at full retail and still be shy of what the inverter will handle.
Shame on me for not reading closer and assuming they would put a BMS that matched the substantial build of the battery. Shame on Signature Solar for not delivering the battery they advertised with a front mounted breaker, and built in bluetooth app. It took Dustin in support days to come to the realization that their battery can't perform to a reasonable expectation. They have no interest in helping make this right, so back it goes and my rating is POS.
I spent a week trying to figure out why my Victron Multi II 2x120 kept putting the battery into a fault. Finally I look at the specs an find out they used such a small BMS that if my inverter is at 50% capacity, it will put the battery into protect mode. Let me check the battery status using the bluetooth app, nevermind it didnt come with bluetooth.
I purchased from Signature Solar assuming a US based company would be "better" than dealing with someone offshore who just says return it, pay the shipping or buy another one. Here is the kicker, the solution provided by Signature Solar is return the battery (pay for shipping) and pay a restocking fee, or buy a second battery with a grossly undersized BMS at full retail and still be shy of what the inverter will handle.
Shame on me for not reading closer and assuming they would put a BMS that matched the substantial build of the battery. Shame on Signature Solar for not delivering the battery they advertised with a front mounted breaker, and built in bluetooth app. It took Dustin in support days to come to the realization that their battery can't perform to a reasonable expectation. They have no interest in helping make this right, so back it goes and my rating is POS.