NameBattery Tester
ModelBT860
Power supply: No power required
Measurable battery typesVarious button cell batteries, 1, 2, 5, 7, and 9V square batteries, etc....
Function: The battery can be measured to determine if it is fully charged, and the color indication is as follows.

Red (RE-PLACE replacement or RE-CHARGE charging):If the indicator points to this block, the battery in the test needs to be replaced or recharged, which means the battery is basically unusable;

黄色（LOW）：The battery is running low, but some appliances can still be used.

绿色（GOOD）：Battery is fully charged

Usage Method:
1. Connect the 9V battery directly to the two test holes on the side of the tester.

2. For other batteries similar to a 5-volt battery, please use the tester's top test arm to push the battery in. (Please refer to the product image).

Special Note: Do not measure the capacity of the battery, such as measuring how many mAH the battery is...

Many electrical appliances have different requirements for the start-up battery voltage. Even though many batteries can no longer power Appliance A, they often still have half a charge, which is more than enough to power Appliance B. A battery voltage tester can be used to check AA and AAA batteries at any time, including whether they have power and how much charge they have, which completely avoids wasting batteries.