Do rechargeable alkaline batteries lose their effectiveness over time?
J asked:
If you use a rechargeable alkaline battery (AA & AAA) for a fairly long time, will it eventually provide less power per a recharge? will you have to recharge them more often? Or does a rechargeable battery provide same amount of power every time you use it until it expires? I need to reference my sources so it would be great if you gave me a link to a website which answers my question. Thank you.
If you use a rechargeable alkaline battery (AA & AAA) for a fairly long time, will it eventually provide less power per a recharge? will you have to recharge them more often? Or does a rechargeable battery provide same amount of power every time you use it until it expires? I need to reference my sources so it would be great if you gave me a link to a website which answers my question. Thank you.
Yes they lose power and the ability to hold a charge over time resulting in more charges.
they all run out eventually. Think about your cell phone battery. Eventually it just wont keep a charge anymore for very long.
yes after a while the chemicals inside it get fewer and fewer until it will only work for about a day or two.
it will stay rechargable for a fairly long time, if every time it runs out , you lett them charge fully befor you reuse them
I’ve been using them for about 3yrs and I’ve haven’t seen any difference.
They say they’ll last up to 10,000 charges.As to getting weaker over time is a good question.
Rechargeable alkaline batteries that are discharged heavily lose their ability to be recharged to reasonable capacity relatively quickly – sometimes in as little as 25 charge/discharge cycles. Their main advantages are relatively long shelf life, slightly lower initial cost, and the fact that they don’t have any major environmental issues regarding casual disposal. For most purposes, NiMH cells are a far better choice – especially the newer type with a significantly lower self discharge rate.
500 or more charge/discharge cycles are commonplace for a NiMH cell. It’s not uncommon for a higher capacity battery to be rated for fewer cycles, although you need to do some digging through manufacturers’ data sheets to find that kind of information.
I’ve included several links below that should answer most of your questions about various rechargeable chemistries used in AA and AAA cells.
Don