How fast do RECHARGEABLES lose their charge?

[brightnorm]

I've heard that rechargeable batteries tend to lose their charge at a significantly higher rate than non-rechargeables. Is this true, and if so, can anyone give me a rough idea of the percentage loss of the various types per unit of time, whether it be daily, weekly or monthly?

Best regards,
Brightnorm

 

[Lonewolf]

Just to mix it up a little but how do the rechargeable Alkalines compare to the Nicads and the Nimh. I understand that they hold there charge for years but how does the run time compare?

 

[vcal]

I've used those rech. alks. quite awhile too.
Those seem to keep their charge almost as well as the regular alkalines. Although, after they've been recharged 30-40 times or so, that drops off too.
Some numbers for capacity:
AA alkaline-2800mAh
" rech.alk-1500mAh
" " NimH-1800mAh-(newest/best)

 

[vcal]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by brightnorm:
I've heard that rechargeable batteries tend to lose their charge at a significantly higher rate than non-rechargeables. Is this true, and if so, can anyone give me a rough idea of the percentage loss of the various types per unit of time, whether it be daily, weekly or monthly?

Best regards,
Brightnorm<HR></BLOCKQUOTE>

Hi Norm, -that's true alright...
But you do want to remember that % losses daily are based on the remaining battery capacity (like isotopes).
I use rechargeables a heck of a lot and as a rule, I have found that Nicads lose about 1% daily and the Nimhs about 2% daily. But remember, as The Battery Guy sez: those loss percentages are not based on the original capacity, so as the battery drains, the losses get proportionately smaller each day. -That's why you will notice that those rechargeables in your device can still be functioning as long as 6-8 months later.

 

[brightnorm]

Thanks guys, for your responses

Regards,
Brightnorm