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Old 09-22-2015, 01:26 AM   #1 (permalink)
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Default MultiStar 4S 8000mAh

I have been looking for appropriate battery for my F550 with E300 propulsion system and found MultiStar 4S 8000mAh. But ... it bothers me because it has only 10C discharge rate and I Am afraid that it's not enough. Does anyone using this type of batteries?
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Old 09-22-2015, 05:33 AM   #2 (permalink)
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My son uses the 10C 8000's on his 550 sometimes and says it's OK, as long as you fly nice and easy. If flying w/ heavy loads / aggressively, it has it's short comings appear pretty quick.
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Old 09-22-2015, 11:25 AM   #3 (permalink)
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I was leery of the Multistar's low C ratings as well, but in fact they have performed well on my heavy lifters, such as my Quad 8 using 4 ea 6s 10,000 mah packs.

It may depend on what your goal is and you're setup with motor size, props, and weight. If you're looking for instantaneous power to do aerobatics, yeah they may not be your best choice. But for endurance, slow steady flight, they work great!!

Especially for the price....
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Old 09-24-2015, 06:39 PM   #4 (permalink)
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I have Multistar 8000 6s on my Hexa. For a steady gentle flying such as AP and videography if not chasing up fast moving objects is required they perform well. The only negative I have to say about them is that they do not balance very well during charging and some cells refuse to go much over 4.10V even when continue to charge for a loooong time. My charger never reaches the fully charged stage and I usually terminate the charging process manually after about an hour. But that does not seem to adversely affect their overall good performance.
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Old 09-28-2015, 08:13 PM   #5 (permalink)
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I use them on my F650, gimbal, GoPro, retracts, pretty heavy AUW at over 3kg, the batteries perform well, no puffing yet with ~20 flights.
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Old 11-12-2015, 08:20 AM   #6 (permalink)
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I tried to measure working current. With ampe meter I have I was able to measure only peak current and it was bellow 20A. Working current is between 8A and 12A ... I Will try Multistar 4S
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Old 11-24-2015, 03:12 PM   #7 (permalink)
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Update. After about 30 cycles one of my 6s 8000mAh LiPo has one cell dropping voltage much faster than others resulting in shortened flight times. I am guided by overal voltage and land when I see 21.5V on my 6s. Because one cell is obviously weaker, the flight time has gone down from 17min to 13 min. Still ok but something I have to be aware of and watch the telemetry voltage info closely. Still no puffing though.
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Old 11-24-2015, 06:26 PM   #8 (permalink)
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I don't use any flight battery with less than a rating of 35c. My F550 with E300 gets flown with 4s 5200 35c LiPos from GetFPV. I get about 20 to 25 minutes depending on what I'm doing.
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Old 11-24-2015, 06:59 PM   #9 (permalink)
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Quote:
Originally Posted by setishock View Post
I don't use any flight battery with less than a rating of 35c. My F550 with E300 gets flown with 4s 5200 35c LiPos from GetFPV. I get about 20 to 25 minutes depending on what I'm doing.
Have a look at the promo video for Multistar batteries. The guy is telling a lot of sense. If you use high capacity batteries you do not need high C rating for multicopters, unless you're flying some speed competition. The flight time is closely related to overall weight of the craft. Mine fully loaded with 8000mAh 6s Multistar, camera and gimbal is 3,750g. 17min and even 13min is very reasonable and I am happy with it.
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