ORIGINAL: JCINTEXAS
Quote: ''Dang! Those A123's are cool though''
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Hi David,
I just received two A123 2S receiver batteries for my 12FG 2.4GHz.
Haven't finished reading the instructions...haven't charged them yet.
Do I understand you are using these without a regulator?
I've been wondering if I need a regulator or just use them full-strength.
My question is: ''Will it shorten the life, or otherwise damage my digital servos? (BLS451 Futaba Digital Brushless)
FASST FLIER
JC,
excellent choice! Actually no, I do use a 6V regulator. One of the great things about A123's (or 2s Lipo's) is the possibility of constant voltage delivered to the control system throughout a day. Using 6V+ packs allows, through a regulator, to deliver a clean 5.6V or 6.0V as desired. This is particularly important on 2.4 gear (Spektrum in my case) which requires voltage to function properly. Old fashioned NiCd 4.8V packs don't provide that peace of mind for Spketrum Rx's. The one important thing to watch out for is voltage drop on A123's when it happens - it will dive fast and hard. Solution? Don't let it happen. A123's charge to full capacity in 15 minutes! Also, given their 30C rating, they provide a pretty flat voltage curve even without a regulator.
Having said that, I know of several who don't use a regulator since full charge is in the 7.0V range. For some radio equipment that is not a problem but the longevity of your servo's and clean filtered power of a $10 regulator can't be beat.
Nice servos!
David.