Who using A123 batteries?

[crazyjoe]

Got mine from Tanic Packs wired the way i needed them. went out the next day.

[MattyMatt]

	Quote: Originally Posted by Dan_nO
	From what I have understood you cant load check the 123's like lions,in talking to Kurt from Fromeco the Kodiak switch they designed, what it does it shows how many ma has been take/used out of the battery, that is how you know how much battery is left.

You can use a load checker... it just doesn't do anything because they will not drop in voltage unless under a huge load.

	Quote:
	I ordered some from Fromeco 3 weeks ago... still waiting for them.

Mine took 3-4 weeks to get here, but they work great. Very consistent voltage.

[Stu_D]

	Quote: Originally Posted by MattyMatt
	You can use a load checker... it just doesn't do anything because they will not drop in voltage unless under a huge load. Mine took 3-4 weeks to get here, but they work great. Very consistent voltage.

I was just saying the same thing to a mate . People need to come to grips with the fact that these things work a little different .

Mine took one day . You should of got then from boom-rc.com/

[dubd]

What do you guys load check your a123 batteries with? My fromeco A123 batteries arrived and they are awesome. I have about 20 flights in them so far. I plan on converting my jets over soon.

[flynz4me]

I have two A123 Racing 2300 packs in my Carden Yak and they rock!!! Load checked them last night and the were at 6.4/6.3, today at the field after the maiden flights they were 6.6/6.7!!!! Yeah baby!!! 15 minutes and they are full from 0%-100%...

[Dr. Yankem]

Here's my set up. 2 123s' into a power box with a single receiver. 40%er with 8 5955s and 2 analog servos for choke and throttle. Had 6 12 minute flights. Charged the 2 batteries with Cellpro charger with a Y harness putting them in series, at the same time, (after unplugging the deans from the power box to eliminate the common ground) Charger said 13.something volts, 40 % capacity and
put in 1075ma when charging and balancing were finished. All flying was imac practice. 2 questions: do these numbers seem reasonable. 180 ma used for each flight and each battery used 537ma for the 6 flights?

[Stu_D]

Dr your figures are spot on . Thats almost exactly what I get .

[Hammbone]

Are you using a Power Box or Power Expander as well?

Jim

	Quote: Originally Posted by Stu_D
	Dr your figures are spot on . Thats almost exactly what I get .

[Dr. Yankem]

	Quote: Originally Posted by Hammbone
	Are you using a Power Box or Power Expander as well? Jim

Smartfly power expander pro. 5955s set up with the Hitec programmer

[Hammbone]

I saw in your first post that you were using a Power Expander. I was wondering if Stu_D was as well.

Jim

	Quote: Originally Posted by Dr. Yankem
	Smartfly power expander pro. 5955s set up with the Hitec programmer

[Bob S]

Is anyone using these on a DA ignition?


With 2 RX packs, do they have to be disconnected from the RX in order to field charge them?

[Pale Rider]

	Quote: Originally Posted by Bob S
	Is anyone using these on a DA ignition?

I am--per DA they are fine with their ignitions

	Quote: Originally Posted by Bob S
	With 2 RX packs, do they have to be disconnected from the RX in order to field charge them?

Depends on the charger being used..

[Zeeb]

	Quote: Originally Posted by Bob S
	Is anyone using these on a DA ignition? With 2 RX packs, do they have to be disconnected from the RX in order to field charge them?

I've not run my DA-100 yet but as Joe said DA okayed the use of unregulated A123's on the ignition when I called them.

As for charging dual packs. That's been a bit of a quandry for most of us. I've only got one model running dual packs through switches right now and those can be charged one at a time with the CellPro charger.

I must mention that my batteries are setup on that model with dual outputs. The one that powers the switch/rx has only the ground and positive leads coming out of the battery, while the other lead is a standard servo type connection with the signal wire run as a balance tap and that's what I charge through. So if you're going to fly enough in one day to need to charge, then you'll need a separate Ernst jack or something for that purpose. My charge leads are just left inside the hatch as I did with my Durlite Li-Ions because there just isn't any way I'd fly enough in one day for them to need charging. The three wire output is not hooked to the switches as that would put the balance tap power into the signal output of the rx. I also run three wires from the switch to the rx and that allows me outside the model access to the Batt/Bind and Batt/Data ports on my 2.4GHz rx's.

Now that does leave the common ground through the switches, but no balance tap power and unless you try to charge the two batteries at the same time with two chargers, you should be okay.

Word has it that one of the Fromeco chargers will do two batteries at the same time with a common ground, but the charge rate is limited to 2.5 amps. The CellPro puts out 4 amps, so for me already having the CellPro, it doesn't make a lot of sense to buy a new charger when it'll actually take longer to charge two batteries at the same time that it will to charge them one at a time...

[Pale Rider]

	Quote: Originally Posted by Zeeb
	Word has it that one of the Fromeco chargers will do two batteries at the same time with a common ground, but the charge rate is limited to 2.5 amps.

Yep--the Cube will works with the common ground..Been using it for the last few months.

[TazmanianDevil]

I am using 2 2300Mah for my 37.5% Yak and they work awesome, they are giving me 4 ten minutes flights.
Also using one for the ignition, well i dont even charge it till the next week.
As for the best thing i got for them it is the Kodiak switch that tells me the amount of Amps my plane is consuming and it turn on to be a very good purchase since on my first flights i lost allot of Mah and didnt know why, a check i did with my flying Buddies turn on to be that the rudder is too tight and for that reason the servos burned allot of Mha, well if i didnt have the Kodiak i wouldn't even noticed the loss.
Well done Fromeco!