It works very well. It has a lot of features and the battery lasts a long time. The battery is replaceable if you remove the three back screws. It is a general lead acid battery. I've had two of these for at least 7 years and surprisingly, I never had to change the battery. They are still working well. I bought two more used from eBay for a great price and I have no doubt or trouble with them. The ECO function works well too. The purpose is to automatically switch off lighter loads two minutes after your main heavy load turns off. Such loads could be your LCD monitor or powered computer speakers, so they don't draw power sitting in standby mode while not in use.
Verified purchase: Yes | Condition: Pre-owned
Firmware is garbage. Unit constantly turns to battery for no apparent reason, and I have to hard restart it every single time. Trash. Using it as a power strip.
Verified purchase: Yes | Condition: New
I have 3 of these units. 1 is about 3 years old. It works very well. I am so glad they still make these. I recently purchased 2 more. Works great with my computer. Also use with my TV and sound system as a surge protector.
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