 
There are a number of battery testers in the market. Some good and some not so good.
So the BT -705 was tested and the results indicate this battery tester to be quite accurate and covers a number of tests.
In addition to checking the 12v battery, the Foxwell BT 705 also does the following:
- Tests both 12v and 24v battery
- Tells the SOC of the battery
- Tells the SOH of the battery
- Tells the CCA of the battery
- Tells the internal resistance of the battery
- Checks the starting system of the vehicle
- Checks the charging system of the vehicle.
All in all a complete battery tester. You can also purchase an optional printer to printout the results and give to the customer in case you run a garage or workshop.
