Now  I saw an LSD NiMH Sanyo Eneloop which was 2500 AH so decided to switch to LSD now. I have ordered two sets for my Tx's.

http://cgi.ebay.in/ws/eBayISAPI.dll?ViewItem&item=170635182575&ssPageName=STRK:MEWNX:IT

Sanyo Eneloop 2,000 mAH LSD are availabe here for around 600 for 4 .They are more than adequate for most applications.

I use Eneloop for pretty much every device that accepts AA cells. Not the one is the pic though. But the white ones. I also have a few Duracell 2650 mAH and also a set of Uniross Dynamic 1900 mAH.

The Uniross and Eneloop have the same tech. The precharged ready to use thingamagic watchamacallit.

Turnigy 1450mAh 3S 11.1v Transmitter Lipoly Pack, is this the biggest battery that can fit in a Futaba 6EXAP?

SLS

With Eneloop 2000 & 2500 mAH cells being available locally at reasonable prices, why look for an import substitute?

Hi Sushil,

Do you have an idea as to how much they cost ?

SLS

1450mah are more than enough to keep your radio charged over a month..

Quote from: sushil_anand on June 03, 2011, 11:51:00 AM
Eneloop 2000 & 2500 mAH cells being available locally at reasonable prices, why look for an import substitute?

Yes! i read the complete thread, and saw how you guys came to a conclusion that LSD'd are the best option. The problem is my radio doesn't have the metal contacts (springs) you need for AA cells

Quote from: atul_pg on June 03, 2011, 11:54:05 AM
1450mah are more than enough to keep your radio charged over a month..

Actually I am also using my tx on the sim hence looking for the biggest i can get.

I have this

http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=14076

fits perfectly into any tx which uses 8AA Bat(turnigy & RDS8000). Fully charged to 10.8 V and Min is 9.9 V. dont need to solder any diodes.

SLS

I have a 2500mah tx lipo battery that would fit in the futaba 6exap perfectly. But..

One cell is dead..lets see if we can find one more cell then we can change the dead cell from the lipo and make it working.

Azhaguvel any LHS stocking it ?

Both ratings available in Mumbai. How many and which ones do you want?

How about the 8AA cells 2500mah.

Edit - Just found out a link

http://cgi.ebay.in/Sanyo-Eneloop-Color-AA-Rechargeable-Battery-Pack-8-/170647757485?pt=LH_DefaultDomain_203&hash=item27bb6622ad

Never try to make a Tx battery pack with normal batteries. You cannot solder the 'Tabs' of the normal batteries sold in grocerry store, and Battery holders tend to suffer loose connection many times. My friend Vinay on this forum had bad experience using battery holders.

Instead, go for professionally assembled LSD NiMH battery packs like :

http://cgi.ebay.com/Sanyo-Nimh-2700mAh-9-6v-Transmitter-Square-Pack-/270748076899?pt=UK_ConsumerElectronics_Batteries_SM&hash=item3f09d7cb63

http://cgi.ebay.com/9-6V-2100mAh-Transmitter-Flat-NiMH-Battery-Pack-Futaba-/400220346053?pt=UK_ToysGames_RadioControlled_JN&hash=item5d2efdd6c5

I would prefer a lipo instead of the AA for sure.

Quote from: ujjwaana on June 03, 2011, 12:42:44 PM
Never try to make a Tx battery pack with normal batteries. You cannot solder the 'Tabs'..

Thats what i'm afraid of. The second link you posted is the kind of pack (8xAA flat) I need. But want to buy locally or something from HK maybe.

Quote from: atul_pg on June 03, 2011, 12:14:26 PM
I have a 2500mah tx lipo battery that would fit in the futaba 6exap perfectly.

Which battery is it, can you please post a link or something.

Ujjwaana

I beg to disagree. I have been making and using soldered packs (Tx & Rx) for the past 30 years without any problem whatsoever. Soldering is a technique and, when mastered, can result in  a perfectly satisfactory job. The only problem is the slight increase in dimension because of the soldering. That has to be taken care of.

But, I have recently discovered someone who spot welds the cells. That is what ALL manufacturers do and would be acceptable to you also, I think!

Battery holders are a no-no.

I got this battery from sai. Don't remember the name. One cell is dead , was thinking of replacing it with another cell.

Not recommended. The new cell will be different in characteristics from the others. Maybe you could make a Rx pack out of 4 or 5 of the remaining good cells.

Guess you are right. I did change one cell of my earlier lipo battery but of course they were of the same brand and it worked fine.

In between, I bought a turnigy 9x and fitting in a 2.4ghz frsky module and saurabh is the guy who is helping me out here.

Thinking about getting this one 
http://www.dealextreme.com/p/11-1v-2200mah-8c-replacement-li-poly-battery-pack-for-futaba-6ex-remote-controller-51219

Two of the radios I own use AA cells (for Tx, that is). Now, alkaline cells are impractical so most people use NiMh. But for radios with LCD, even NiMh cells get consumed fast.

I was thinking about using a 2s LiPo for my SD-5G. It has a battery slot for 6 AA cells (and gives a low voltage warning at 6.7V). A 2s LiPo can be accommodated with a bit of tinkering (cutting the plastic walls that separate the AA cells  ).

Has anyone tried this before? Are there any issues I should be concerned about?

hi,
   i got two radio
1: turningy 9x which is powered by 11.1v turningy 1450 mah low discharge transmitter pack from hobbyking.
2: hobbyking 4ch which is powered by 8 NiMh 1600mah cell.

now i can assure you that my tx no.1(5 channel working) runs for 6-7 time more than tx no.2(2ch working)
i bought 8 envia NiMh cell for Rs.500 and turningy lipo for $8 ie   :Rs:360.

( http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=9787 )check this link for cheap tx lipo

for rx any rc flyer or sailor will be happy to remove 100-200 gms from his plane or boat.

i have 70A esc, before using BEC i used futaba rx battery pack, i had to give full throttle for hand launching my glider
but after replacing futaba battery with  5volt 3A BEC 60% throttle take my glider in air.

i saw the beauty of LiPo and hope above data will help you.
Cheap Powerful and BEC dont reduce your flight time.


enjoy..............
Amit

In how much time will 1450 mah turnigy (with hk 2.4 black) wil discharge, given 80% throttle all the time? 

And with simulator?

Today I have replaced and added one vote for transmitter lipo since one of my transmitter came with Lipos from manufactures which by design can be charged fitted inside Tx.    

It comes with a 2S 3400ah Lipos. I thought I will buy a spare 2s lipo of same dimension, but as I see the voltage at the balance terminal of the 2S lipo is  12-0-12 volts. I cannot use any standard 2S lipo. I can only conclude it has a balance and charging circuit inside the OEM Lipo. The OEM Lipo is more costly than a decent 2.4 Ghz 6 channel tx