Practical Considerations – Primary versus rechargeable batteries

Practical considerations

Primary versus rechargeable batteries


Telemetry Solutions uses both primary and rechargeable batteries depending upon the application.  Generally, if you can tolerate the weight of the primary battery, they are a far better choice. Here are a few important considerations regarding primary and rechargeable batteries.


  • The lightest rechargeable battery that we can use weighs less than 2 grams.
  • The lightest primary battery that we use that can provide enough current to power the GPS weighs 9 grams. 
  • Gram for gram, primary batteries are 6 times more energy dense than rechargeable batteries 
  • A rechargeable battery with the same capacity as a primary battery will have a very big footprint rendering it unusable 
  • At -10° C. the rechargeable batteries will stop producing current sufficient to operate the GPS
  • Rechargeable batteries can be tested to confirm they capacity, primary batteries cannot be


We are happy to provide you with a deeper and more clear understanding of batteries.  Please feel free to call us at +1 925-798-1942

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