![]() Over time, the amount of amps (rate of input) going in slows down. As I explained earlier, once you reach the charged voltage, you remain there for a while putting more amps in at that voltage. The trail current you mentioned above (4% of capacity) that's related to the absorption phase. Third, what I think is happening is that, even with the correct charged voltage settings, the shunt thinks the charging is finished. If your charged voltage is 13.2, for instance, then when you start your car and the system hits the bulk phase (~14.4v), the shunt will just assume you've over charged, but you can't have more than 100% of capacity so it just takes 100%. Second, your settings need to be correct. If you have two paths to the battery negative, one being through the shunt, a little will go through the shunt, but the majority will take the less resistance path. Electricity follows the path of least resistance. The shunt measures amps by using resistance. NOTHING should get to the battery without first going through the shunt of you want an accurate measurement. If the above is the case, amps are going into the battery but not through the shunt. Ok, you have a lot going on here, but I think I'm seeing what's going on.įirst, it sounds like negative of the battery is connected to ground (the vehicle frame) and doesnt go through the shunt. Is this the issue? Should it be plugged in directly to battery minus or system minus of the smart shunt since? I'm guessing this would show a higher charge current which would prevent the 2nd paramater from checking off auto syncronization.ītw, I gave you a gold star for all the help! THANK YOU! And now as I'm typing this, I'm realizing the ground cable is still plugged in directly to the car battery. ![]() With that being said, my fridge only draws 4 amps which would fall under the charge current parameter (135AH x 4% = 5.4 amps). So theoretically, if I were to go camping having my fridge all night running off my Lithium Car Battery and draining to X% the next morning, I can drive for 3 minutes and the State of Charge would show 100%. ![]()
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