Cr2032 Battery Backup Circuit Usb

This is a good replacement charger. I use it on MP240, so if you have battery in the compatible list, it will work. Charger is like 2/3 of the original charger in overall size, lightweight and the made seems very sturdy. Good for traveling carry. It provides the information of the battery during the charging time, such as the temporary, battery status, input circuit rate, charged circuit power, and indicates the end of the charge. It can be plugged into any USB charging port for charging, of course, it depends on the output circuit ratio of the USB port, charging time is vary. However, the build-in USB charging cable is very short (like 2.5” only), so this is the only little disappointing part. Price is much cheaper the OEM charger. So it’s recommended.

I run through a bunch of CR2032 batteries every couple of months. I like these because battery life has been good, and I can buy them at a reasonable price through B&H.

The RAYOVAC CR2032 Lithium Battery (2-Pack) contained two, count-em two CR2032 cells. Absolutely amazing!!. These were purchased as spares, so I have not measured their voltage yet. Presumably, they will produce the rated 3 Volts and will last for 190 to 240 mAh. They are 20 mm in diameter, shiny and light weight and most likely contains some lithium & manganese dioxide so are technically a LiMn02 cells. FYI: They can explode if heated to more than 80 deg. C.

it's a battery backup. what's not to like?

The previous 2 USB hubs I had for my system overheated, burned out, and destroyed the circuit board in my iMac. I should have ordered the TS4 at the same time I ordered my iMac. Could have avoided several head-aches!

I use it for AutoCad, Circuit Maker, is perfect, comfortable and the battery last... uf, I put the battery 3 months ago, and I don't need to change it.

Inexpensive backup battery.

I always like to have a backup battery. This is a good one.

Great to have a backup battery.

Happy to have a backup battery.