Inverter with battery, these common sense must be understood.

Friends who are backup power sources and photovoltaic energy storage often encounter a strange problem: the inverter is tested inde-

pendently, and the parameters of the battery are up to standard. After being put together for a short time, the battery life shrinks and 

bulges, and the inverter is always stopped for protection. Many people think that the product quality is poor, and the accessories are 

changed repeatedly. Finally, it is discovered that the simple basic common sense is ignored when the two are matched.

We have been engaged in industrial power supply for many years, and we have come into contact with many on-site projects. Most of 

the supporting failures of batteries and inverters are not caused by the damage of the equipment itself, but by the wrong way of matc-

hing. Today, the main points of matching are clearly explained in popular words.

First of all, the voltage must correspond, and it can't be used. The 24V inverter can only be equipped with a 24V battery pack, and the 

48V inverter is matched with a 48V battery, so the voltages are not matched, and it is troublesome to use. When the voltage is low, as 

soon as the inverter drives the load, it will give a low-voltage alarm and cut off power; If the voltage is too high, it will directly damage 

the internal components of inverter. In addition, if the inverter has its own charging function, the charging voltage should also match 

the battery. If the voltage is too high, the battery will be charged, and if the voltage is too low, the battery will not be fully charged for 

a long time, and the storage capacity will become worse and worse.

Choosing a battery can't just look at the battery life, but also withstand the instantaneous high current. Ordinary lighting load at home, 

the normal specifications of the battery can meet; If you want to drive equipment such as pumps and motors, the current will suddenly 

increase at the moment of starting. If the battery discharge ability is weak, the voltage will be pulled down instantly, and the inverter 

will stop directly. In this scenario, it is necessary to choose a battery that supports high-current discharge, and at the same time, the ba-

ttery capacity does not need to be blindly increased to match the daily electricity demand. Long-term battery loss or long-term full-

charge shelving will shorten the service life.

Lead-acid batteries and lithium batteries cannot mix a set of charging parameters. The voltage and charging rhythm required by the two 

batteries are completely different. Now the normal industrial inverter can switch the battery mode, so it is necessary to adjust the corre-

sponding mode in the inverter before installing the battery. In the random mixed mode, lithium batteries are prone to overcharge and 

heat generation, lead-acid batteries are prone to dehydration and bulging, and batteries will be scrapped in just a few months, so the 

cost of replacing batteries is not low.

The wire between the battery and the inverter can't be made casually. The connecting wire from the battery to the inverter is too short 

and thin, which will cause voltage loss when the current passes. The terminal voltage of the battery looks normal, but when it is transm-

itted to the inverter, the voltage is insufficient, resulting in frequent protection with fixed equipment. In the scene with long distance and 

high power, the thicker copper wire is directly used to reduce the line loss, and the whole system is more stable to use.

The inverter and battery are complementary to each other in the whole energy storage standby system, and it is not possible for the two 

devices to operate stably for a long time simply by splicing. Good parameter matching and wire matching in the early stage can reduce 

the cost of a lot of maintenance and replacement of accessories in the later stage, and it saves a lot of worry in use.

If you don't know how to match your own load with large capacity battery, inverter and battery, please leave a message in the background. 

I can give a complete matching scheme according to your usage scenario. Baoweite's various industrial inverters support the adaptation of 

lead-acid and lithium batteries, and are suitable for outdoor energy storage, standby power supply in computer rooms and other scenarios.

If you need type selection and transformation, you can consult Baoweite for the scheme. Thank you for browsing. You can collect official 

website of Shenzhen Baoweite Power Supply Co., Ltd.