Blue Spot 31114 Battery Bulb and Fuse Tester

Amazon

Checks the condition of batteries, bulbs and fuses before discarding Checks battery capacity under simulated load conditions Tests output of heavy duty, alkaline and rechargeable batteries Tests blade and glass automotive fuses Requires 1 x 9V battery (not included), Weight: 0.3747858454 Pounds, Manufacturer: Blue Spot Tools

Zoro Tools

The BlueSpot Battery Tester checks the condition of batteries, bulbs and fuses before discarding. Checks battery capacity under simulated load conditions and tests output of heavy-duty, alkaline and rechargeable batteries. Tests blade and glass automotive fuses. Requires 1 x 9V battery (not included).