The Battery’s Role

Much of the electronic equipment in use today requires some type of self-contained reserve power

When compared to other forms of rechargeable batteries, the NiCd has a number of distinct advantages including durability and tolerance to deep discharge for long periods. In fact, NiCd batteries in long-term storage are typically stored fully discharged. This is in contrast to lithium-ion batteries, which are less stable and will be permanently damaged if discharged below a minimum voltage. NiCd batteries typically last longer, in terms of number of charge/discharge cycles and when compared to lead-acid batteries, NiCd batteries have a much higher energy density. A NiCd battery is smaller and lighter than a comparable lead-acid type.

Batteries contain materials considered hazardous and should always be handled and disposed of with care.

I guess it’s a shame potato batteries never caught on in the aerospace environment. I can see an alternative to paying the inflated price for airline snacks and spent battery disposal could be handled by the digestive system.

What a concept! AMT

Jim Sparks has been in aviation for 30 years and is a licensed A&P. He is the manager of aviation maintenance for a private company with a fleet including light single engine aircraft, helicopters, and several types of business jets. He can be reached at

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