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I suspect your draining the batteries too low and they aren't getting back up to full. 10 volts is too low for agm's. Once the batteries start going below 11 volts they start losing capacity, they will still charge back up to 14.4 volts but once you start putting loads on them they don't last...

I was reading up on the victrons and some of the controllers shutdown power production when the controller temp reaches 40c (104f) , the temperature when the engine is running is about 150f under the hood, also sitting in the sun the temperature can reach those temps also. If you put the...

IF your going to upgrade later with a bigger panel, I recommend the makeskyblue 60a mppt (cost me 130 including shipping) . I recommend it because it has an LCD screen where you can program it (no bluetooth needed). It has a fan to keep it cool. But a feature I like is that it has voltage...

The alternator will quickly charge the battery to about 80 percent, the closer the battery gets to 14.4 volts the less amps the battery gets. As the lead acid battery gets full it won't accept high amps, maybe 3 or 4 amps. IF its an old battery that has lost capacity it will charge quickly to...

I have 2 battery banks, a 220 ah lifepo4 and a 312 ah li-ion. One thing I noticed was when the batteries got down below 20 percent my 12 volt fridge (26 liter joytutu) kept shutting off as soon as the compresser kicked on, it would just cycle back and forth. I did check the low voltage cutoff on...

This is a picture of 2 jumpstarter I have the tacklife is a 3s and the gooloo gp2000 is a 4s, also I took a picture of the inside of the clamp assembly, it has some circuitry and a 70 amp relay.

On the clamps assembly that connects to the jumpstarter, there is a little button that will override the safety features and allow you to jumpstart a completely dead battery. Just make sure the cables are hooked up correctly since it overrides the wrong polarity safety feature. The button is...

yes you can charge with alternator and mppt at the same time. The mppt will stop charging if the battery reaches 14.4 volts (while charging with alternator) . Since most drop in lifepo4 wont fully charge until 14.6 volts, charging constantly at 14.4 volts shouldnt be a problem since it will be...

Myself I would test them to make sure they will operate at the rated amps. I see you have some of the shortstop circuit breakers, I had one similar rated for 30 amps, but they were tripping at about 22 amps. The 100a littlefuse breaker is namebrand so it should trip at the appropriate rating. On...

in southern california san diego area with my 365 watt lg neon panel flat on the roof in the winter I get about 13 amps, in the summer I seen up to 27 amps. With a 240 panel I was getting about 9 amps in winter and about 12 amps in the summer. With a 120 watt panel I got about 5 amps in winter...

With an mppt controller if it is programmable, you can adjust the bulk setting to whatever voltage you need, but some bulk settings go only so low. But I suspect the laptop probably needs stable 19 volts if it goes too high or low it might stop charging the laptop. There is a 30a boost...

Just make sure you double and triple check the sae connectors before connecting them. I was going to use them but found it was very easy to wired incorrectly. In some situations the positive wires can be black or vice versa, to me it was too easy to screw it up, all it takes one mistake. For...

With the TR16 it will definitely help you in maintaining your battery. If you see the solar isnt getting the battery terminals up to 14.4 volts, I would definitely consider raising the bulk voltage higher if you can depending on what controller you have. Same with your AC chargers, you need to...

I recently started using a 10a boost buck converter (all in one) and so far its been working good but I only tested at 4 amps. They are in the 10 dollar range on ebay. The one in the picture I tested and it is a true boost buck converter able to turn low voltage to higher voltage and maintaining...

I have to make my own battery chargers since the ones available don't show the voltage and amps. Blinking lights don't do anything for me. When charging lead acid or lithium, I like to see the voltage and amps going into the battery in realtime. You can tell when the battery is full as the...

My advice is get either a TR16 coulomb counter or tk15 coulomb counter (both cost about 30 dollars for 50a version) with this meter you program your battery amp hours and then it counts the amps in/out of battery. I used these on my lifepo4 but they also work on lead acid. With these you can...

you should, you just need to check how much charge rate it can handle, the high end batteries can be charged at up to 100 amps. If the battery is too far from the alternator or the gauge of the wire is too thin your never going to get high amps to the battery. As long as the alternator output...

go with the battery, the controller has an overvoltage shutoff, when this shutsoff the dc aux out it requires manual turn on. The battery gives you uninterrupted dc power which the fridge requires. It shutsoff when you have sunny days and a cloud blocks the sun, as soon as the cloud clears the...

if you can get a dc wattmeter or something similar connected to your lifepo4 to see how much amps are actually going into the battery in real time. That will tell you everything you need to know. On my system at 13.6 volts I get maybe 1 or 2 amps of charging power which is insignificant if your...

at 13.6 volts your battery will never get fully charged. Little by little it will drain to zero percent which happens quickly when the battery reaches about 20 percent. I might be the different one here because I charge my 220ah lifepo4 to 14.6 volts every day (for the past 3 years). While...