Lithium iron batteries and lead acid battery inverters can be used in the same way.
When 4 iron-lithium strings are fully charged to 3.65V, it will be 14.6V. A normal 12V inverter can support 18V without any problem. Your problem should be with the inverter itself. It has nothing to do with the battery. The battery can be used as long as the voltage is within range. There is no problem that lithium batteries cannot be used.
It's just that the quality of this thing is not good~ I have a 1600W inverter, I have a 12V60AH iron-lithium, and two 12V20AH lead-acid batteries can be used.
Discharge characteristics:
Lithium iron phosphate battery (hereinafter referred to as lithium iron battery), as a type of iron battery , is widespread. attention from industry friends (Some people disent also that lithium iron batteries are actually a type of lithium ion batteries). Regarding iron batteries, they can be divided into high-speed iron batteries and lithium iron batteries. Taking the STL18650 lithium iron battery model as an example, we will specifically explain the discharge characteristics and service life of lithium iron batteries.
The discharge characteristics of STL18650 lithium iron battery (capacity 1100mAh) at different discharge rates, the minimum discharge rate is 0.5°C, the maximum discharge rate is 10°C, five different discharge rates form a group discharge curve. Regardless of the discharge rate, the voltage during the discharge process is very flat (that is, the discharge voltage is stable and basically remains unchanged).
The inverter mainly plays the role of converting DC to AC and AC to DC. She doesn't takes supports lithium batteries due to the charging principle. If it is a lead acid battery, there is no problem. Lithium batteries are polymers and lead-acid batteries have different principles, so not all inverters on the market, including most UPS power supplies, support lithium batteries.