I think Bob is mainly referring to NiMH batteries. I am not sure about
the partial discharges, and whether each one counts as a whole cycle.
That is certainly NOT true of lead-acid and Li-Ion batteries, which will
survive many more partial discharges than deep ones. Li-Ion batteries
should not be stored for long periods fully charged, but at 50-70
percent. Fortunately, their self-discharge rate is so low that you would
have to store them for years before you would have to worry about them
becoming completely discharged, which is bad for all types.
73,
Scott K9MA
On 12/28/2018 10:41, Bob McGraw K4TAX wrote:
Something I learned from one of our "tech reps" regarding rechargeable
batteries and charge cycles. I have successfully applied his advice
for a multitude of and different types of my rechargeable batteries.
If you use a battery and then recharge it, that is one charge cycle.
Likewise if you should use only 10% of the battery capacity and
recharge it, that is also one charge cycle. And in the same vein,
if you use 90% of battery capacity and then recharge it, that is also
one recharge cycle.
The point, every time you use the battery, regardless of the amount of
discharge, and recharge it, that is one charge cycle. In other words,
don't recharge until necessary. And never leave a battery in the
discharged state. Always charge to full capacity. Short charging
cycles, because one perhaps is in a hurry and can't wait, only
subtracts from the total number of charge cycles available. And
there are only so many charge cycles with each type of battery. So
every time you use and recharge a battery, click off one charge cycle.
I've practiced this with several different types of batteries and find
that my batteries last much longer and need less frequent replacement.
73
Bob, K4TAX
On 12/28/2018 9:47 AM, Walter Underwood wrote:
Eneloop Pro (labeled Eneloop XX for a bit) are rated for 500 charge
cycles. Regular Eneloop batteries are rated for 2100 charge cycles
but have lower capacity. Choose the one you prefer. I like the higher
capacity batteries.
The Wikipedia page on Eneloop has a chart that clears this up to some
degree.
https://en.wikipedia.org/wiki/Eneloop
wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)
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