Eric G
1 kW
Hello All...
I've got 4 multimeters and all 4 show different voltages when measuring the same 12 volt battery the difference can be of up to ~2/10's of a volt.
These are the meters...
1 - Cheap $10. Walmart "Superex" multimeter stated accuracy .08%
2 - A $30. "Equus"multimeter stated accuracy .05%
3 - A Canadian Tire $40. "Mastercraft" multimeter stated accuracy 1%
4 - A Watt's Up meter $ 50. (don't remember the accuracy).
The cheap Walmart meter reads closest to the Watt's Up meter by 1/100th of a volt.The Mastercraft reads the lowest to the Watts Up by being under 2.5/10's volt.The Equus reads under by 2/10's to the Watt's Up.
I'm comparing all the meters to the Watt's Up because it's used on the road to measure the battery usage and it's used to measure the power going back in while charging the battery.
Which one do I believe???
Thanks
Eric
I've got 4 multimeters and all 4 show different voltages when measuring the same 12 volt battery the difference can be of up to ~2/10's of a volt.
These are the meters...
1 - Cheap $10. Walmart "Superex" multimeter stated accuracy .08%
2 - A $30. "Equus"multimeter stated accuracy .05%
3 - A Canadian Tire $40. "Mastercraft" multimeter stated accuracy 1%
4 - A Watt's Up meter $ 50. (don't remember the accuracy).
The cheap Walmart meter reads closest to the Watt's Up meter by 1/100th of a volt.The Mastercraft reads the lowest to the Watts Up by being under 2.5/10's volt.The Equus reads under by 2/10's to the Watt's Up.
I'm comparing all the meters to the Watt's Up because it's used on the road to measure the battery usage and it's used to measure the power going back in while charging the battery.
Which one do I believe???
Thanks
Eric