What exactly is the capacity of your hellfighter batteries?!?
HKJ - I didn't see that picture. I just assumed you were using the UNI-T. We all know what happens when you do that! Really nice setup you have there. I wasn't aware that the noise/data issue with the hobby chargers was that bad. Know of any quiet ones or am I doomed to make graphs with lots of squiggly lines? I am currently looking at the iCharger 3010B. I have large capacity batteries (BB-2590) as well as the usual small stuff and need something that will handle them as well.
scaru - here are the specs for the BB-2590/U:
Voltage:
28.8v, two (2) Sections each 14.4
Maximum Voltage:
16.5/33.0
Capacity:
In 24V Mode: 8.7 Ah, In 12V Mode: 17.4 Ah
Storage Temperature:
-40°C to +40°C (-40°F to +104°F)
Temperature Operations:
-20°C to +55°C (-4°F to +131°F)
I do have a pile of DMM's and I always uses the best ones first, except when people want to borrow one!
The iChargers are not bad, but I like to get top quality (As you can see in the picture above). You can see an example from a iCharger in my writeup about hobby charges.
The BB-2590 is not that large, running the 3010B at full power would probably fry the battery.
My thoughts are to charge two BB-2590 batteries at the same time as that is normally how they get used. I have a bunch of them. That's why I was thinking of the larger iCharger. The Brentronics charger does 8 at a time but no data is provided. Just charging/pass/fail indicators.
This power supply is good ive used one for a fair while now
http://www.progressiverc.com/p350-power-supply.html
Or a good icharger and power supply combo
http://www.progressiverc.com/the-starter-220w-combo.html
If i had to start again i would buy this one
Must be my lucky day. I just got done checking the voltage of both my Pila chargers and they both terminate at 4.20v at the end of the charge cycle. I guess the 4.17v - 4.18v I was seeing after removing the batteries is just fine like HKJ said.
benckie - I was looking at that same combo. That is probably the way I'm going to go. Like HKJ said earlier, I don't need a 1000 watt charger for what I'm doing. The iCharger 206B will do just fine for single BB-2590 testing/charging/data logging and regular cell charging/testing/data logging. Besides, the Brentronics BTC-70801 is great charger and all I really wanted was more data on the batteries I charge on it. The 206B will do just fine.
Thanks everybody for your suggestions and help.
I found this after searching around for a "quiet output" charger. http://www.progressiverc.com/fma-powerlab-8.html
Great specs AND it has a optically isolated interface to a computer via USB. HKJ said the ones he was looking at had a noisy computer output/interface and I'm thinking this solves that issue. What do you think about this one HJK?
Click on the "features" tab to see all the specs.
It looks great, but I cannot say anything about the noise without trying it.
Here is the charger I currently use for charging my BB-2590's.
