20 AA 2600 mAh NiMH Rech Batts w/Charger $22.49 w/FREE S&H and 10% OFF Code

[datacomm]

I've been using a 2 battery charger like those that come with the eneloop. It works great. It charges each cell indipendantly of the other cells and it stops when the battery is charged.

I believe Sanyo is the source for this charger. They have a few good ideas engineered into these products. Kinda like the first caveman that put his food on a stick to cook it rather than holding the critter with his hand! "Look what Zog do!"

 

[0roo0roo]

unless you really need 20 you are probably better off with enloops or such hybrids. convenience wins.
http://forums.anandtech.com/me...=2125339&enterthread=y

as for charge time, many cheap chargers take a long time. the more mAh battery capacity, the longer. i forget exactly but it could easily go over 10 hours for higher capacity nimhs. more honest chargers list hours for different mah rated battery.

i just use a Duracell 15 min charger because i favor convenience

 

[Blain]

Flip a coin on customer satisfaction with All-Battery. :roll:

My battery dollars will go to Thomas Distributing! :thumbsup::laugh:

 

[icyxwindz]

needed some, seems like their worth what your paying for. $23ish shipped.

 

[mindless1]

Originally posted by: Engineer

Originally posted by: CLiu
I received it today. I'm charging 4 of them now. It's been many hours (probably over 8 hours), and the lights are still on. How do I know if it's charged? How long does it it?

Are you using the included travel charger? If so, the lights will never go off and the charger will overcharge and destroy the batteries. This type of charger is timed by YOU and should only be really used in an emergency type of situation. I recommend that you get a better charger (preferrably a smart charger like a LaCrosse BC900 or similar).

This is mostly urban myth, about a scenario more telling of someone's inability to remember, perpetually, that they started charging cells many days ago, rather than a typical result. It is fine for regular use and in some cases fast chargers are more damaging than these slow chargers because the fast charger and higher impedance cells do generate more heat, attain a higher temp during charging than if the user were to remove the cells from the slow charger in a timely manner- just put the charger where you see it to remember, or in travel situations it is obvious you are gathering up your gear in the morning and that includes the batteries.

The charger lists specs of 700mA but that spec is obviously wrong. Based on the charging time and typical inefficiencies of charging we can see the charge current is about 180mA. That's about C/14 rate, lower than the typical safe rate of C/10 successfully used for years.

You can leave a pair of cells charging at that current for a couple days without a problem, it does not destroy the cells. What it will do, if left overcharging regularly, is reduce the lifespan of the cells by a dozen or two percent. On the other hand it also ensures a higher charge than most rapid chargers do unless one were to leave their cells in for a few additional hours on trickle mode.

Some newer cells can even be left charging at over 100mA indefinitely. The key is rate, if the rate is not excessively high all the cell has to do is have a volume sufficient to not get overly hot.