🔋 Power up your diagnostics game—test smarter, not harder!
The Schumacher BT453 is a compact, battery-powered tester delivering 135 amps of load testing power. It supports both 6V and 12V batteries and completes comprehensive battery and charging system diagnostics in under 10 seconds. Featuring fully insulated, color-coded clamps and a portable design, it’s engineered for professionals and enthusiasts who demand fast, reliable results across motorcycles, cars, trucks, boats, and classic vehicles.
| Brand | Schumacher Electric |
| Power Source | Battery Powered |
| Style | Modern |
| Color | Black, Red |
| Item Weight | 16 ounces |
| Item dimensions L x W x H | 6 x 6.38 x 11 inches |
| Min. Operating Voltage | 6 Volts |
| UPC | 026666814539 |
| Manufacturer | Schumacher Electric |
| Item Weight | 1 pounds |
| Product Dimensions | 6 x 6.38 x 11 inches |
| Item model number | BT453 |
| Manufacturer Part Number | BT453 |
| Voltage | 12 Volts |
S**N
Good Load tester
This Load Tester does a good job.The clamps jaws are a bit bulky for some battery locations and size of lugs. But, with a bit of moving about You can get them to clamp on smallish battery terminals too.
A**.
It’s a great looking tool and I am proud to Have one with My set of tools !
Diagnose my electrical problems as they arrive and do the right job to fix them. It’s the right tool and the right time.
T**S
You need this If you have equipment with 12 or 6v batteries (car, SxS, ATV, Z-turn, generator).
Armor solid construction -I have 30 yr old battery charging equipment from this company --still works like the day I bought it. I did not have a load tester until now -- tests alternator's ability to charge battery, health of battery's ability to supply load -- much more than any multitester can safely do.
A**Z
Built hefty, feels solid, good quality too
Used on my truck with dual batteries... found one battery acting up.
A**R
Works
The only issue I have with it is the clamps, they go sideways when you shut them so they are hard to clamp on a battery or terminal
L**0
Handy to have
Used this to start my 4040 JD tractor with poor starter and not so good batteries ,did suck the life out of it and did need a recharge afterward but it did the job . Also used to start my CAT backhoe with bad battery ,starts a gas pickup no problem at all .Would rather have the cables hard wired to the unit instead of the two prong connector and cables could be a little longer . For the price I was very pleased .
R**H
Bad clamps!
While it works though somewhat difficult to read in ten seconds, the springs on the clamps are too strong. The ends of the clamps for the battery terminals therefore twist out of shape making it difficult to clamp.
D**R
Easy to use
I ordered this "just in case" I ever needed it, and within a week I had a dead battery in my car. I jumpstarted the car and was able to use this tool to 1) determine the alternator was charging and 2) load test the battery to determine the battery was still good. This gave me the confidence I needed to drive the car to work and not be held up by taking it to a garage. And it only took a couple minutes to do this. The machine was very easy to use and read the gauge. Very happy with this purchase.
Trustpilot
2 months ago
3 days ago
