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Results tagged with battery-chemistry
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user 4512
2
votes
is a higher voltage battery a more efficient energy deliverer than a lower voltage battery?
Any given motor will develop torque proportional to current. However, within some reasonable power range motors can be built with considerable latitude in their voltage versus current tradeoff. For …
- 315k
6
votes
Accepted
Why does connecting batteries in series result in doubled current sourcing while shorting?
I think this is due to how you are measuring the current. Your results all make sense if the resistance of your current meter is higher than the internal resistance of the battery at the measured cur …
- 315k
1
vote
9V Battery gauging
Battery voltage doesn't change very fast compared to the time of a A/D reading. One solution is therefore to enable the voltage divider only for just long enough to take the A/D reading, then do this …
- 315k
2
votes
How to calculate capacity of a battery from the readings of current and time?
You have discovered why "battery capacity" is a vague term. Yes, you have to define what the ending conditions are. Usually this is the voltage that the battery should not be discharged below to avo …
- 315k
1
vote
Deciding on lithium battery chemistry, lithium ion (protected) or Lithium Iron Phosphate (no...
I think the lithium iron phosphate system would be safer. These cells are used in transportation systems, and are more robust than some non-specific "lithium ion" (like the kind that blow up in lapto …
- 315k