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HI,
You need an A123/Life Compatible charger..Charging is very easy for this type of battery.. you can safely charge the battery from .5amp to 1.0 amp.. Also make sure you chose A123/Life as your battery when charging
The product photo seems to show just one lead and connector. Isn't there usually a power take off and a balance connector on lithium batteries? See the info on A123 packs at ****hangtimes****.
Seeing how LiFe are allot like Li-Ion cells these packs might be built with a charge/protect circuit that handles the balancing and over/under voltages during use. If that is the case you wouldn't need a balance cable just the main plug to charge it. Only way to know is if some one is willing to take one apart to see maybe one that has reached it's life cycle. as for what I'm talking about here is a link of one such circuit that can be mounted right to the cells and hidden under the wrapping. www.link
i have 4 jr ds589 in my heli 3 for ccpm, 1 for tail servo and gyro jr 410t. im planning to buy these 2s a123 rx pack so do i need to buy UBEC for my said electronics?
You need a charger that is LiFe (A123) compattible. It is much like Lipo but the max charge voltage is lower. Set you charger to battery type LiFe and match the number of cells (2 for this pack) and you are ready to go. Charge current can be up to 10A for a single cell pack but for a receiver pack i would not charge above 4A.
I use a 2s A123 pack in a 8kg edge 540 as a receiver pack *) I have 5 digital hitorque servos that can handle 6V and work great on this pack. The receiver is a AR9100 which can handle the high voltage very well. It even requires 6V minimum :) These packs are a must for digital servo's since new high capacity NiMh drop in voltage or have high impedance of fail quickly. If youre servo's can handle 6V than this is the best receiver pack for bigscale ever! Very quick to charge at the field if you forget *) I charge only 10 min at max *)
what is the point of this? you probably do not need this much current for a reciever. You could use it just as a power pack, but the wire and connector looks awfully thin. On top of that, the price is waaay to high, compared to similar LiPo packs.
Surely it more suitable to power rx on big gas planes and for ignition power. But as i know they usually use 5-6V, here 6.6V. I have to use BEC anyway. :( But positive moment is that it's heavy than LiPo so i can tune CG better than with LiPo.
It is good to have if you are running high current servos, like digitals. An eith servo plane may be pulling a lot o current. The receiver is a minor drain in comparison.
they dont have a balance plug.. but they work very well and seem to hold the charge..
Customer Reviews
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Customer
35 likes
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UNRATED
Quality
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13 thumbs up!
The voltage of these packs is roughly the same as a 5-cell NiMH / NiCd pack (about 7.2V when fully charged), so it CAN be plugged directly to the Rx without a regulator for a really simple and robust setup.
Replacing a NiMH pack is really easy, just unplug it and plug in the A123.
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Overall Rating
ViperFly
118 likes
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UNRATED
Quality
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11 thumbs up!
Great pack!! Using two on my 50cc Extra,no shortage of power!
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Overall Rating
grimgrinnin
49 likes
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UNRATED
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10 thumbs up!
Great battery. Using unregulated in a Futaba FASST receiver in my 30pcnt Extra. Battery leads are too thin for anything other than 1C charging. I swapped them out with 10GA, and can charge at 10Amps no problem.
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Overall Rating
Gustavo
20 likes
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9 thumbs up!
tima bateria! Estou usando duas no meu extra 35pcnt conectado diretamente ao EQ10, sem precisar de regulador!!
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