AKsuited
New member
Other option was the Topdon BT100, Kirk from N. Illinois BMW Club reviewed this one vs Snap-on in a video he posted, both work similar, Topdon costs much less than Snap-on.
I received the Topdon BT100 tester a couple of days ago and got it out today.
My bike battery right off of charge passed the "battery test." But it failed miserably the "cranking test." Despite the bike starting in less than one second, the battery voltage dropped below 8 volts - fail. I had read elsewhere that if a battery drops below 10v when cranking, it's bad. According to the Topdon manual, dropping below 9.5v is "Very Bad - Replace ASAP."
The Topdon tester has already paid for itself. My bike battery is five years old and might have been pushed another year, but then again it could very likely have failed in some motel parking lot who knows where. I will now replace it at my leisure without all the hassles and extra expense of having it fail on a road trip.
Harry