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Settings on the Epever are confusing and some of the values relate to the charge control and some to the load outputs, the manual is not very clear on this.) Load output settings and warnings are shown in italics note changes have been made to this post due to significant errors in the original...

Perhaps quality engineering to prevent such events. Like Steve_S, I've been around some time and seen the results of poorly engineered setups. Luckily you survived uninjured, some don't . A very unpleasant statement, not needed on a technical discussion forum.

Having the charger set for Trojan1275 was a big mistake. These are lead acid batteries. Nominal charge and equalisation voltage are much too high for LFP. The 123 pouch cells are specified for a maximum charge voltage of 3.60 volts, 57.6 for a 48 volt battery. The charger setting for flooded LA...

Poor quality low cost breaker, replace with Bussmann/Blue sea, Example, https://www.ebay.com/itm/395209237520

Pity you did not ask here before going Lithium. All sailboats should use lead acid batteries for the engine starter battery for safety and reliability. If you have a lithium house battery, use a battery to battery charger to charge from alternator power. Your alternator is perhaps a 80A unit...

D You are correct, my error, apologies for misinformation. I made numerous errors. However the recommended values from Battleborn are correct for their batteries. The Epever charger system starts with the current at the maximum that the solar can provide. Once the 'boost' target voltage is...

I have just completed a test on the Overkill BMS with the standard pigtails, 100 amps through a single BMS for 2 hours. No problems, very slightly warm to the touch with a 9 degree C temperature rise reported by the BMS over ambient. An excellent product with good support. If using an Android...

Only 30 amps but recomended, https://www.amazon.com/Victron-Energy-12-Volt-Battery-Bluetooth/dp/B08NY23BKF?th=1

May I suggest that some of the results you are experiencing are not correct Take the example of loosing 10% of capacity on an unloaded lithium pack. Either there is a load that is not apparent, or more likely the softwere in the bms. If you have an Overkill bms this false reporting of capacity...

The shunt is wired incorrectly, with all the connections to the battery negative, the monitor will never have indicated true battery status. To be blunt the wiring is a mess and must be difficult to fault find. Connecting major positive and negative cables to buss bars rather than the battery...

I took the time to read about the disaster you had trying to charge the cells without a bms that prevented over charge. The so called bad cells were OK until you killed them. There are a number of people on this forum that are trying to help you solve the problems. Every body makes mistakes...

You have volt drops in the cable and connections clearly shown by the voltmeter. When charging at mid SOC the cell volts will be 3.3 to 3.4 volts, this is normal. Replace the cables and connectors you have with more suitable cable and connections, heavy gauge cable with crimped eye...

GEL batteries need a long absorbtion period where the charge voltage is held constant at the absorbtion voltage of 14.2 volts maximum. The default absorbtion period for Epever is 2 hours, this is lower than recomended for some GEL batteries under cyclic operation. The manufactures JYC...

Use regular cable similar to existing, the sensor, a 10k NTC, won't be worried about a few feet extra cable. Mike

The recorded voltages suggest that the batteries are unbalanced, thus not charging equally. See page 20, https://www.victronenergy.com/upload/documents/Wiring-Unlimited-EN.pdf Fitting these units may help. ( need 3 for a 48v battery) https://www.victronenergy.com/batteries/battery-balancer It...

The Nuwave induction unit has a max power of 1500 watts. Most induction cook tops PWM modulate the power at lower settings so the peak current will still be high even at low settings. This peak current may exceed the BMS or inverter limit. The specification for the battery suggests a 100 amp...

Leave the charge efficiency at 99%, this does not determine the sync to 100% point. The BMV syncs to 100% when a certain voltage has been exceeded and the current has fallen below a certain value for a certain time. You can set BMV712 to 100% capacity, either manually, or by adjusting the...

Welcome to the wonderful world of Renogy. I think you have one battery, the latest with Bluetooth. The battery is entering protection due to cell inbalance and shutting down the charge path. There is still energy in the output stages of the controller , and with light loads on the 12v system...

Because the BMS has protection settings that disable charging you will find 14.6 volts is too high. The battery enters protection and will show incorrect volts at its terminals. Almost all 'off the shelf' batteries will have unbalanced cells leading to issues where the charge volts are too...

The alternator ' internal resistance effect' at high current. When the field current reaches maximum, driven by alternator output voltage, the available power at a given RPM reaches a limit. Due to the heavy load current, the alternator output voltage falls, thus the field current falls and the...

Connection direct to the panel with the panel disconnected from the controller you should see around 22 volts. Measuring power with a multi meter is not practical. Once your system is connected up the charge controller will display panel status. the controller you have does not have a default...

Suggestions for improvements and possible safety issues. The low cost breakers you have fitted are known to be unreliable, overheat and introduce unwanted volt drops. Where over current protection is needed at a lithium battery, fuses, MRBF for 12 volts and class T at higher voltages, are...

The IP22 has an internal fan and is available in higher output current than the sealed units, also versions with multiple outputs. The IP22 and IP67 versions operate up to higher temperatures than the IP65 version before reducing charge current . For permanent mounting in a building or a RV the...

The Victron specification for the terminations is a maximum of 16mm2 or AWG6. Pin crimp terminals can be used to give a neater connection. The bulk stage is where the controller pushes as much current as possible into the battery until the voltage on the battery reaches the 'target voltage'...

The buss bars seem to be incorrectly assembled. The cable termination eye for the BMS leads ideally needs to be on top of the bar, not sandwiched between the bar and cell terminal. Why are there two high current cables on the battery negative, should not all current go through the BMS? The...

The heat energy is derived from the chargers not the battery itself. If the chargers are configured to inhibit changing at low temperatures then the heating will not occur. Have you considered this may the cause of ithe problem?

There is no current control or dump. In a lithium application the external BMS can switch off the Cyrix. The Cyrix is basically a combining relay, voltage sensing, with external override. Yes this is possible, you guess the output resistance of the alternator and its voltage /current...

It may lead to over stress. With small solar systems, charging at fractional charge, the battery will be almost fully charged when the boost voltage is reached. The boost duration of 120 minutes will just stress an already charged pack of cells. Many of the settings on the Epever relate to the...

I suspect the OP is on a 'wind up' mission , rather than a constructive discussion. Mike

Its more than PAT testing. To comply with mobile regulations you will have to install equipment that allows safety equipment, RCD to prevent electrocution. Not all inverters allow easy implementation of the neutral to earth bond that is needed. Renogy Inverters are mostly not suitable...