Forget it. After a while, the battery died. 1000W, 12 needs a current of 83.3A It is reasonable to say that the battery of 100A can last for more than an hour. The actual battery has a virtual 1 standard, and with the loss of inverter switching power line, 100A battery can last for 50 minutes. Two or three hundred kinds of step waves need at least 2000W, 1500W sine wave is enough, but 1000W sine wave is more expensive than 2000W step wave, but it is often recommended to buy sine wave, which is suitable for all kinds of electrical appliances. Step wave can only be used for resistive loads, and some electrical appliances cannot be used.