Product details
Sealey BT91/7 6/12V car battery drop tester
If you’re fed up with guessing whether your battery or alternator is on its last legs, the Sealey BT91/7 battery drop tester is the bit of kit you need in your toolbox. Designed for both seasoned mechanics and those of us who just like tinkering at the weekend, this tester makes checking your car’s electrics a doddle. No faffing about with complicated setups – just hook it up and you’ll know in seconds if your battery or alternator is up to scratch.
What makes this tester a real winner is how simple and safe it is to use. There’s no risk of sparks, no hot hands, and you don’t need to be a whizz with electrics to get the hang of it. It even works on batteries that have barely any juice left, so you can spot issues before you’re stranded on the side of the motorway.
Whether you’re running a garage or just want to keep your family motor in tip-top shape, the BT91/7 helps you catch problems early – saving you time, money and a fair bit of stress. Thanks to its compact, lightweight build, it’s easy to stash in your glovebox or toolkit, ready for whenever you need it.
- It checks both 6V and 12V batteries, so it’s spot-on for everything from classic cars to modern motors.
- You can test batteries with as little as 1V left, making it handy for diagnosing nearly flat ones.
- There’s no risk of sparks or overheating while you’re testing, so it’s safe as houses even for beginners.
- Gives a quick readout on your alternator and starter too, so you can figure out what’s actually playing up.
- Lightweight and portable, so you can take it to jobs or keep it handy in the car.
Look after your battery and alternator with the BT91/7 and you’ll save yourself a world of hassle down the line. Just give it a quick test every few months or before long journeys – it’s a small job that can make all the difference.