Have you any idea exactly what voltage your batteries are outputting after charging them? Nope, didn't think so. Now you can with this handy little LCD numerical display battery tester. Not a cheesy dial analog display that only tells you good, bad or kaput, but real-time numbers to the decimal point that display exactly what voltage charge the battery is holding.
Features:
Clear LCD numeric display for easy to read voltage levels
Suitable for zinc-carbon, alkaline or rechargeable 1.5V AA, AAA, C or D type, 9V, 9.6V and even 1.5V button cells!
The tester is powered by the battery being tested so there's no power source required
Chart on the back of battery tester to inform user of good and bad power levels
Built-in on-load resistor for accurate results
Auto polarity indication of battery
Non polarization testing terminal
Adjustable sliding arm to accomodate different sized batteries
There'll be no more need to replace fried leaking batteries because you left them on the charger too long. You'll not be left with an underpowered battery in your marker by mid day in the middle of a game because you did not charge the battery long enough as well. These common problems that Spyder owners might experience can now be totally eliminated for a few bucks.
**Since this tester is powered by the battery being tested, keep test times to a minimum to avoid any undue voltage draw from the battery
**It may suprise you that the Java 9.6V batteries have a 12V+ output when fully charged
