inverter charger not charging

Inverter Charger Not Charging Fix Guide

The problem of the inverter charger not charging the batteries can be caused by several things.

The batteries may be overloaded, under-loaded or charging at too high a current.

To ensure proper charging, check the battery connections for corrosion and tighten them.

If you cannot solve this problem, you may have a loose connection. Check the power cables of all batteries. Make sure they are properly connected to the charger.

If you can’t determine where the problem lies, try contacting the charger manufacturer.

What is an inverter charger?

The inverter charger is a device that is a combination of a solar charge controller and an inverter.

You can use its charge controller function directly to manage the solar charging process, and you can use the built-in inverter to directly power household appliances without the need for an external inverter on the battery when it is placed in a home or RV solar system.


Some inverter chargers may not fully charge the batteries, e.g. the float voltage is too high. A battery should be at least 54.4V and the inverter should stop charging when it reaches 100% SOC.

If the float voltage is too low, it may be due to the manufacturer’s settings for bulk charging, such as 58V.

Check the manual for your particular model to find out what the problem is.

Inverter Charger Trouble Shooting: Problem, Cause and Solutions

Provided below is a general list of common inverter charger not working problems, and a few quick fixes that may help solve your dilemma.

There are also many links to items within our online store. These link to the most popular products in that category, and may not necessarily fit your inverter controller.

Always remember to check your owners manual to ensure that the correct parts are purchased.

Inverter Charger not charging Charge Parameter Setting Wrong Reset Charge Inverter Charger and setting it as manual guide
Battery Voltage Setting Wrong Let Controller Auto Detect or Manually select
Battery Type Setting Wrong Select right Battery Type (lithium, lead acid or AGM)
Charging Protection Mode Waiting or Reset the Controller
Wrong Battery Type Check whether the battery type is supported
Wring Wrong Reconnect the Cables
Physical Damages Replace a New Inverter Charger
Inverter Charger not working Inverter no output Check whether is reverse connected
inverter socket no energy output is the socket it broken, contact with the manufacturer for replacement
110V or 220V Size Wrong Replace the correct voltage inverter charger
Appliance Too big the power of the appliance must in the working range

If your inverter charger is manufactured by ZHCSolar, you may need to update the software. Some of the latest models have software updates that may fix the issue.

Check the Spec Sheet and the Operator’s Manual to find out which version you have.

Otherwise, contacting the manufacturer is the best option.

If you can’t find any solution through this guide, you may have a defective product. A broken unit can cost a lot to repair.


Inverter Charger not Charging Fixing:

In order to better use the hybrid inverter charger, it is necessary to set up the charge and discharge parameters correctly in the initial stage according to the manual.

If there is a problem with the charger inverter, you can refer to the error code displayed on the screen, and resetting the controller inverter is also one of the options to solve the problem.

Other possible causes include a faulty battery. Make sure that your hybrid inverter charger is configured correctly to avoid such a problem.

Otherwise, the batteries won’t get enough juice to carry the charge. The battery is either dead or rapidly discharging. The voltage drops to the point where charging is impossible.

In some cases, the inverter may have a GFCI that needs to be reset. Check the battery wires to make sure they are properly connected.

Make sure the positive and negative wires are properly connected.

Some inverter models are designed to operate on specific battery voltages.

Using batteries with the wrong voltage will damage the inverter and the connected loads.

Make sure cables are the correct size and secure. Loose terminal wiring can cause the system to shut down.

You should also clean the battery. If you can’t find the problem in your inverter, you may be able to repair it yourself.

If that doesn’t work, you may have a blown fuse. If so, check the fuse inside the battery disconnect switch. If it doesn’t, the main circuit breaker will not work.

When connected to shore power, the AC goes to the inverter while the other AC goes to your home and AC loads.

If the inverter charger doesn’t detect an AC power source, the micro-amp will stop charging.

If your RV inverter charger still isn’t working properly, the problem could be with the circuit board or battery cables.

Check the voltage of your battery before connecting it to the charger.

Then try reconnecting the AC power. If the problem persists, contact the manufacturer.

They should be able to help you find a solution to your problem. If your inverter charger does not charge, you can replace it.

Further Reading:

Inverter Charger vs Power Inverter

Solar Charge Controller not Charging Fix Guide

Wind Charge Controller not Charging Fix Guide

Hybrid Solar Charger Controller Guide

Inverter Controller Integration Basics 2023

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