The one we have is a "MAHA MH-C800S eight cell AA/AAA quick batttery
charger"
(https://www.ebay.com/itm/333148128470?chn=ps&norover=1&mkevt=1&mkrid=711-213727-13078-0&mkcid=2&itemid=333148128470&targetid=4580496732614416&device=c&mktype=&googleloc=&poi=&campaignid=418233788&mkgroupid=1230353745471221&rlsatarget=pla-4580496732614416&abcId=9300542&merchantid=51291&msclkid=7f2c5e3a4ba515ebf3633f612ec791fe
<https://www.ebay.com/itm/333148128470?chn=ps&norover=1&mkevt=1&mkrid=711-213727-13078-0&mkcid=2&itemid=333148128470&targetid=4580496732614416&device=c&mktype=&googleloc=&poi=&campaignid=418233788&mkgroupid=1230353745471221&rlsatarget=pla-4580496732614416&abcId=9300542&merchantid=51291&msclkid=7f2c5e3a4ba515ebf3633f612ec791fe>}
Each position will take either a AA or a AAA battery, and is
individually monitored. It also has a "slow mode" where you can gently
charge them instead of quick charge. The batteries will last longer if
you don't stress them out with rapid charging.
bp
<part15sbs{at}gmail{dot}com>
On 10/4/2021 1:19 PM, Nate Burke wrote:
Is the 8 bay charger a Panasonic charger, or 3rd party? All I'm
finding from Panasonic are the 4 port chargers. Do they make 20 or 30
slot chargers?
On 10/4/2021 3:16 PM, Bill Prince wrote:
We have a smart charger with slots for 8 batteries, and each battery
is charged individually. It knows when they are charged, and has an
indicator that says so.
bp
<part15sbs{at}gmail{dot}com>
On 10/4/2021 1:13 PM, Nate Burke wrote:
Is there a limit to how long they can stay in the charger? Like
could we put them in the charger whenever they're not in use so
they'll always be full?
On 10/4/2021 3:04 PM, Bill Prince wrote:
We have a half dozen or so trail cams for spotting wildlife around
our property. They all take between 8 and 12 AA batteries.
Regular alkaline AA batteries do OK, but have to be tossed after 3
months or so.
So we have been using NiMH batteries, which are rechargable. They
last as long or longer than the alkaline and can be recharged
hundreds of times.
We have learned a few things about the NiMH vs alkaline.
First, and possibly the most important is that NiMH run at a
nominal 1.2 volts, while alkaline run at a nominal 1.5 volts. Some
devices just won't tolerate the lower voltage, so you have to test
them to see how they work. In the favor of NiMH batteries, the
voltage holds longer and does not go below 1.2 volts until they are
about done. Alkaline OTOH will continuously degrade from their
nominal voltage.
Second, don't get just any NiMH batteries, get Panasonic Eneloop
Pro (black). They last the longest, and will hold a charge longer
while sitting on the shelf.
Finally, the NiMH "AA" batteries are a tiny bit larger diameter
than alkaline. Most devices are OK, but we have a few where
shoe-horning the NiMH into the same space is a bit of a challenge.
Also, as another alternative, you might look at Lithium
(non-rechargable) batteries. They are the same size and voltage as
alkaline, but will last 5-10 times longer. They are also the most
expensive.
bp
<part15sbs{at}gmail{dot}com>
On 10/4/2021 12:47 PM, Nate Burke wrote:
At Church we use a some wireless microphones, they all use 2 AA
batteries. There is a battery indicator on the units, but
Invariably, they will start to alarm in the middle of using them.
I'm pretty sure the indicator is logarithmic, like my gas gauge,
so it will spend %75 of the time reporting full, and then quickly
fail after that. So I'm thinking about just mandating that all
batteries are replaced at the beginning of each use. We're not
talking about a ton, ~20 batteries per week.
How good are Rechargeable AA batteries, It's been years since I've
last used them, would they be worth looking into? Does anybody
take half used alkaline batteries and do anything with them other
than throwing them out?
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