Btw if anyone needs practically brand new 4s 3300 batteries I have my hyperions for sale. I was going to use them for my f450 but quickly got bit by the disco bug and I wanted longer flight times since it weighs more I need bigger batteries. The hyperions have like 2 cycles on them. They're in the for sale forum.
Best Batteries?
- Thread starter homer911
- Start date
I had Genace and then bought some Zippy Compacts... the Zips performed the same and weigh less so i sold the Gens.
During a cartwheel incident a balance lead flung out and got chopped or crushed dunno but it smoked for a sec and had to be replaced.
Also got tired of always having to tuck in the balance leads when mounting... so now i put on a jst saver and tape them to the batt... better for charging as well.
During a cartwheel incident a balance lead flung out and got chopped or crushed dunno but it smoked for a sec and had to be replaced.
Also got tired of always having to tuck in the balance leads when mounting... so now i put on a jst saver and tape them to the batt... better for charging as well.
Attachments
Lanzar
Member
THis is why we sell for disco frame the gensace which fits perfect and is a total match for it.
http://www.kopterworx.com/Batterries/lipo-4s-3800-gensace-/-TBS
Lanzar
Member
Well if you compare gensace to zippy try 50 loads on both off them and i will ask you after you have done it. Zippy will drop to 70% storage after 50 loads and more, while gensace will almost stay the same.
We did the test on our bateries used only for when we go on a job to do some serious shooting. And we used 6x pair off zippy 5s 5800 and 6x pair 5800 gensace. We always put them to storage and we take care off them.
Zippy after 50 charges did only 3500 to 3800 mha and voltage droped to 3.3v per cell loaded.
Gensace still does 5000 to 5200 until voltage drops to 3.3v loaded ofc.
So this is why we switched to gensace. And they have a aluminum plate around them to protect them from hits and dents ++++ they also survive a crash.
We did the test on our bateries used only for when we go on a job to do some serious shooting. And we used 6x pair off zippy 5s 5800 and 6x pair 5800 gensace. We always put them to storage and we take care off them.
Zippy after 50 charges did only 3500 to 3800 mha and voltage droped to 3.3v per cell loaded.
Gensace still does 5000 to 5200 until voltage drops to 3.3v loaded ofc.
So this is why we switched to gensace. And they have a aluminum plate around them to protect them from hits and dents ++++ they also survive a crash.
Oh... i must of got the uber Zippy Compacts... since i put near 200+ cycles on my 4S 4000/4500mah batts during the summer and they still all hold pretty near full charge.
Crack me up tho.... are you serious... $80 for one 4S 3800mah 25C battery... i only paid $30 for one 4S 4500mah 35C Zippy... and like i said above.
Crack me up tho.... are you serious... $80 for one 4S 3800mah 25C battery... i only paid $30 for one 4S 4500mah 35C Zippy... and like i said above.
redridinghood
Member
+1
Out of 16 Zippy 4S 8000mah I have none is out of commission after 75+ charge cycles.
tahoelight
Member
I have had two gens ace batteries fail in the last two months. They still did better than any of the nanotech batteries I ever had. I need some replacement 5s batteries and can;t find the Gens Ace in stock. Has anyone had luck with the 8000mah 5s nanotech? I am tempted to try a couple, but I hate the puffing I have always experienced. Anyone have any Gens Ace 5s 5300mah 30c they want to sell?
Benjamin Rowland
Member
We've had great luck with MaxAmps batteries.
tahoelight
Member
Which one would you suggest? I thought some were not up for the task.
mitsaras
Member
I wish I'd known this before I tried to stop a falling 6S/10000mAh with my foot... OUCH!!!!
Droider
Drone Enthusiast
I know I have seen somewhere a very good explanation of battery C rating and flight time but I cant find it , I think it was by Maxamps . Basically it said the higher the C rating to more overall deliverable power was available from the battery because the voltage drop across the cells is reduced. I am looking at trying a couple of Maxamps are they worth the investment?, anyone able to shed more light on it.
Dave
Dave
Benjamin Rowland
Member
10,900mah batteries are good. Much higher C rating than the 11,000mah.
BorisS
Drone Enthusiast
Dave there was a post from digitech (rcgroups) concerning maxamps that their C rating is not the real constant C rating but burst ! Thus bird with 40 A draw will be fine to a certain extend, but anything above will lead to the experience of a very fast voltage drop !
I have a 10000 Mah 4s which became my lipo for the ground-station, since the sandor posted the email response from maxamps which adressed his complaints and they stated that their c rating should be seen as a burst raiting since their lipos are mainly used for rc cars.
ah actually found it http://www.rcgroups.com/forums/showpost.php?p=23145360&postcount=1
Boris
This is true. "C" rating is essentially a measure of the battery's source impedance. At a given current draw (in amperes), a lower R-sub-s results in less energy being converted to heat within the cell itself. Obviously not a good thing, this, but no battery has a real-world source impedance of zero, so this effect will aways be present to some degree. At really high currents, say 30 amps plus, this effect can be a major source of battery self heating. Not good. If the manufacturer's rating is accurate and not inflated as posted earlier, a higher "C" pack will result in more power being available to the load (the aircraft) and not self-consumed within the battery itself. This said, I have trouble believing some manufacturer's "C" ratings, as the math just doesn't work. There's no way they could be true for long-term loading, like an entire flight. "Burst", maybe. Given this I take them all with a very large grain of salt.