AAA and D alkaline batteries

Jo4

I want AAA and D alkaline batteries but is it possible to get these as rechargeable batteries? I don't think so but I thought someone on here would now for definite.

LesD

AAA are widely available but 'D' cells less so. And they're likely to be expensive.

Remember, most chargers are AA/AAA size.

However, you can get 'spacers' in 'D' size which take an AA inside and look like a standard 'D' cell.

Have a look at this site for more info.

Jo4

So you can get these as rechargeables then?

random456

Yes, I have the triple a's myself.

Jo4

pumpa wrote: »

Yes, I have the triple a's myself.

Are they alkaline batteries?

17Dave

Hi Jo4
Most rechargables are NiMH LiIon or NiCad basically exotic metals that recharge quickly and give more power.
Alkaline batteries tend to be disposable.
Is there a specific reason you need alkaline?

Jo4

17Dave wrote: »

Hi Jo4
Most rechargables are NiMH LiIon or NiCad basically exotic metals that recharge quickly and give more power.
Alkaline batteries tend to be disposable.
Is there a specific reason you need alkaline?

THANKS for explaining. The alarm needs new batteries and it states alkaline. I will add them to my shopping list. :A :T

basill

All sizes are available in nimh rechargeable form, but only give 1.2volts each compared to 1.5v for an alkaline, although they can usually supply a higher current. They do however discharge quite quickly whether used or not so cant be relied on in infrequently used items clocks etc. Best to check or try some in your application to see if this is suitable.
A recent development are hybrid nimh rechargeable cells, an example are sanyo eneloop, lots of offers including a charger about on amazon etc...
Currently these are available only in AAA and AA sizes. These hybrid batteries are supplied charged and although they dont quite match the capacity of the best ordinary nimh cells have the advantage that after a year unused they can retain 85% or so of a full charge and are still good for high current applications.
For many applications they are the best of both worlds. If you are using them in an alarm the self dishcharge property of old type rechargeables may be the reason alkaline batteries are specified, it may of course be the voltage as well

Cheers,

B

17Dave

If your manual or other info does not tell you the specification of the battery you may be stuck as some equipment does not work well on rechargeable batteries as some of them do not give the "standard" 1.5 volts.

Might be worth checking with an electrician or alarm installer. If it is an older alarm the power of a rechargeable may be OK.

There must be someone on these forums who knows...