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        Help! best AA rechargeable batteries? And best charger for 7.4v 800 mAh li-po batteries?

#1 RocketSnail Dec 28, 2010 05:14 PM

best AA rechargeable batteries? And best charger for 7.4v 800 mAh li-po batteries?
 
hi there! Firstly I have bought a La Crosse BC-9009 AA and AAA battery charger,and I have various objects I could use rechargeable batteries in, (such as two transmitters that I am getting in two rtf heli kits) and I need a recommendation of the best AA batteries available in stores (walmart, cvs, etc)..

any ideas?

and second I was wondering if any of you would recommend me using a stock charger (from the E-sky Lama V4) to charge my stock 7.4v 880 mAh li-po batteries... or do you recommend I buy a different charger for the lipo batteries?

#2 lipoflyer Dec 29, 2010 01:33 AM

I've been running the turnigy AA 2200ma batteries. Last set I brought were about $1.50 each.

If all you're going to charge is a 2s battery you could get a cheap turnigy 50w charger. It will charge up to a 6s but it's only 50w so you might only be able to charge a 6s at 2 amps

Www.hobbyking.com

#3 kgfly Dec 29, 2010 05:05 AM

I think that Sanyo Eneloop are the stand out proven best low-self-discharge NiMH AA and AAA cells for low drain applications such as Tx or Rx in small models.

#4 Wrend Dec 29, 2010 06:01 AM

Best is relative to the application, and what you specifically want out of your AA cells... But yes, Eneloops are a great option for many AA and AAA cell needs. I second their recommendation.

They're a little hard to find in stores in the US. Costco usually carries them though, and you can find them on-line at various places. Thomas Distributing usually has a pretty good price on them. Link here: http://www.thomasdistributing.com/sh...acturers_id=19

#5 RocketSnail Dec 29, 2010 06:57 AM

thank you all very much for your replies! I think I will look at the turnigy and the eneloops and decide from there. Thank you all a bunch!

rsnail

#6 Miami Mike Dec 29, 2010 08:36 AM

Quote:

Originally Posted by RocketSnail (Post 16940591)
... best AA batteries available in stores (walmart, cvs, etc)..

If you like Eneloops but can't find them in local stores, look for these 2000 mAH Duracell DX1500 AA cells instead:

http://www.geeky-gadgets.com/wp-cont..._batteries.jpg

According to the data sheets, these are essentially identical to Eneloops except that they supposedly have an even lower internal impedance, which implies that they'll maintain a higher voltage than Eneloops under the same load.

Data sheet for Duracell AA Pre-Charged (DX1500) cells

Data sheet for Sanyo AA Eneloop cells

#7 RocketSnail Dec 29, 2010 03:21 PM

wow that's awesome! That's great though, I'll check those out also. (the battery charger came in and I'm happy about that :D)

thanks for replying

rsnail

#8 Wrend Dec 30, 2010 06:16 PM

Not sure if they still are or not, but I've heard that the white topped Duracell pre-charged NiMH cells are actual rebranded Eneloops.

Either way, they should be a pretty good option too, as well as the Rayovac pre-charged NiMH cells.

I like getting the Eneloops because they started the trend. There are also the "new and improved" Eneloops that have an even lower self discharge rate, holding 75% of fully charged capacity for up to 3 years. They're also supposed to hold up in even colder temperatures, and have up to a 1500 charges cycle life.

#9 RocketSnail Dec 30, 2010 08:07 PM

aren't the new ones the "hybrid" type or something?

#10 krexken Dec 31, 2010 11:04 AM

I stumbled across this a while back. http://news.cnet.com/8301-17938_105-...contentBody;4n. Looks like Energizers beat Duracells.

#11 everydayflyer Dec 31, 2010 11:18 AM

FYI Energizer is merely a name that is sold to a bitter. In the past myself and many others had great results with their 2100 and 2300 mAh NiMH cells but their 2500 ones were awful They had a very high failure rate. I now stay clear of Enerizer consumer AA and AAA cells.

http://www.rcgroups.com/forums/showthread.php?t=550481


Charles


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