Are batteries suppose to show open or shorted across the taps from positive to negative? I have 20 or so 1.45v 265 ah SAFT batteries that show half of them open and half shorted.


closed as unclear what you're asking by brhans, Enric Blanco, Voltage Spike, DoxyLover, PeterJ Jun 21 '17 at 10:56

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • \$\begingroup\$ Flip your multimeter probes and report your findings. I suspect it is not unlikely that you will find the ones that read open now read short and vice versa. \$\endgroup\$ – Joren Vaes Jun 20 '17 at 12:13
  • 2
    \$\begingroup\$ Continuity testing is done by putting a small voltage across the probes and measuring the current. An active voltage source will throw off the reading. \$\endgroup\$ – ratchet freak Jun 20 '17 at 12:18

Multimeters aren't designed to measure resistance in a live circuit. The voltage that the battery puts out is confusing the meter.

To test a battery, put an appropriate load on it and measure the voltage that the battery produces.


Not the answer you're looking for? Browse other questions tagged or ask your own question.