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Old 06-06-2016, 04:01 PM   #11
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Re: EDF lipos


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Old 06-06-2016, 05:44 PM   #12
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Re: EDF lipos

Fair enough. Bling away.
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Old 07-04-2016, 04:00 PM   #13
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Re: EDF lipos

Quote:
Originally Posted by akabek View Post
I am in the market for some new lipos to run an EDF. For my application I am looking for a 6S 3000-3500mah range. These are the three I am looking at:

Turnigy Bolt 3400mAh 6S 65~130C HV $72.37US
Turnigy Graphene 3000mAh 6S 65C $68.04US
Revolectrix 3000mAh 6SHV 22.8V Lipo - 70C SILHV label $77.95US

Does anyone have experience with the Bolt, Graphene, or Revolectrix lipos? I have some Revolectrix (not high voltage) that I have ran in an EDF and it comes down cool with no puffing but I also do not run it full throttle for the entire flight.

I don't want to get caught up in the hype but a battery that can take the stress of an EDF would be ideal. On another note do I really need the high C count or is that more fluff?
Sounds like you've done your research as these are generally regarded as the top three at the moment. They are also very reasonably priced compared to local name brand packs so that is an added bonus.

You'd be surprised what a difference a good lipo can make in an EDF or even any high performance prop plane.
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Old 07-04-2016, 04:05 PM   #14
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Re: EDF lipos

A little review I did on the
Bolt last year:

Mini-review: Turnigy Bolt 2400mah 65C 4S LiHv

This will consist of some initial thoughts and impressions with a static bench run and a test flight.

The new wave of high voltage lipo’s boast a higher energy density and different chemistry than conventional lipo’s allowing for a peak voltage of up to 4.35V This increase makes for a not only a more powerful battery, but also a longer and higher discharge curve while coming in at nearly the same weight as existing lipo's.

Size/weight comparison:

First impressions are The Bolt HV is a very solid and well made pack, similar in construction to Turnigy’s premium A-Spec line that sits at the top of the HobbyKing range. There also appears to be a small wire 'vein' running along the length of the outside of the battery, perhaps to aide in cell balance or discharge uniformity.

At a rated 2400mah, the Bolt 65C LiHv pack was only marginally longer and slightly heavier than a conventional 2250mah 45C pack. On hand for comparison I had two standard 4.20V batteries.

A Thunder Power 2250mah 45C and a Li-on Power 2200mah 40C ‘eBay pack’

TP 2250 45C: 247g

Li-on 2200 40C: 224g

Bolt 2400mah 65C: 256g

see attached pics


Max Power Test

After a few charge and discharge cycles at 1C, I decided to charge up the Bolt to the standard 4.20V to do a couple of break-in flights in my mini hotliner fitted with a 2600kv direct drive motor and a 5X5 fixed prop. Cruising around at 30%-70% throttle for several minutes, the Bolt came down at 3.90 volts and had barely risen above ambient temperature, so far so good; Time to open it up and see what it can really do! I first decided to pull out the watt meter and make sure this new battery wasn’t going to melt any electronics in flight.

I had earlier tested the TP 2250mah 45C posting up 62amps and 925 watts.

The discount brand Li-on power pack came in at 60amps even and a respectable 870 watts.

The fully charged Bolt 2400mah 65C clocked in at 67amps and 1030 watts!

As expected the LiHv handily beat the two standard packs in peak output.
Looks like the advertised specs translate into a marked increase in power on the bench, but what about in flight?

Test Flight Impressions

After topping up the pack it was all systems go for a full on test flight. After a warm up circuit, I throttled up to maximum and did a full speed pass over the runway. Immediately noticeable was the sterner, higher-pitched wail emitted signifying an increase in RPM. Visually speed was significantly up with the model having more punch during acceleration and climb (will try to update with some GPS comparison readings down the road). The Bolt seemed to hold power very well as I performed several more full speed passes with only a slight performance drop. After landing, to my surprise the Bolt was still showing 3.87V, (looks like I can easily add an extra 30-60seconds on my timer) battery temperature was slightly warmer than before, but again only marginally above ambient temps!

Final Thoughts

With only a handful of flights so far, it is difficult to gauge what the long term performance will show, however thus far the Bolt HV has not only impressed with increased power, but also it’s incredible thermal handling capability. Both the TP and especially the Li-on power lipo’s had significantly increased in temperature after a flight, while the Bolt was barely warm as it delivered more power. This is one of the most important aspects of a high quality lipo, especially when faced with substantial amp loads. The Bolt can no doubt handle far more amps than I was able to throw at it.

Even setting aside the HV aspect, (and the accompanying need for an HV 4.35 compatible charger) the Turnigy Bolt with it’s impressive flight times and ability to deal with high power setups without breaking a sweat, would make a excellent choice for anyone requiring increased levels of performance – even when used at the standard 4.20 setting.
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Old 07-04-2016, 05:19 PM   #15
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Re: EDF lipos

I just tried the Revolectrix 40C HV 4S 5800mah times 2 in my Avanti Mini running a Jetfan 80mm EDF and 2 people came over and asked me what Turbine I was running. I had just Maidened my Avanti Mini using a Turnigy Nano-Tech 8s 4400mah and nobody seemed to be paying any attention. I was a little disappointed with the power and the flight. I then used my new Revolectrix batteries and mahn what a difference, way more power and a much better sound. The 2 4S Batteries weighed the same as the 1 8S. 5800mah verses 4400mah. I'm sticking with Revolectrix Batteries
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Old 07-04-2016, 06:12 PM   #16
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Re: EDF lipos

No experience with Bolt but I plenty flights on revo HV blend 435 packs and I can tell you they are solid performers period. 6 day shipping to your door, very low IR and multiple cycles still going strong.
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Old 07-04-2016, 06:17 PM   #17
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Re: EDF lipos

So far I have used some 4S 2200mah 40C Revolectrix batteries in my Rifle and it got everyone's attention for the noise and boost in speed. I did run a few full throttle passes and the lipo came down cool which was a pleasant surprise. With all that it still comes in the same price range as the Nano Techs. In the next day or two I will receive a couple of HV Bolt lipos that I will drop into the Vampire. Not a speed plane but I bet it will wake up the power system. The only complaint I have these days is that we are limited to only 2 lipos per order.
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Old 07-04-2016, 07:44 PM   #18
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Re: EDF lipos

Quote:
Originally Posted by RickyBoy View Post
I just tried the Revolectrix 40C HV 4S 5800mah times 2 in my Avanti Mini running a Jetfan 80mm EDF and 2 people came over and asked me what Turbine I was running. I had just Maidened my Avanti Mini using a Turnigy Nano-Tech 8s 4400mah and nobody seemed to be paying any attention. I was a little disappointed with the power and the flight. I then used my new Revolectrix batteries and mahn what a difference, way more power and a much better sound. The 2 4S Batteries weighed the same as the 1 8S. 5800mah verses 4400mah. I'm sticking with Revolectrix Batteries
Sounds good, yeah the Avanti is more for sport and some Jet aerobatic flying, they aren't quite as fast top end as some others. Didn't think they were 80mm though?
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Old 07-04-2016, 07:52 PM   #19
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Re: EDF lipos

Quote:
Originally Posted by akabek View Post
So far I have used some 4S 2200mah 40C Revolectrix batteries in my Rifle and it got everyone's attention for the noise and boost in speed. I did run a few full throttle passes and the lipo came down cool which was a pleasant surprise. With all that it still comes in the same price range as the Nano Techs. In the next day or two I will receive a couple of HV Bolt lipos that I will drop into the Vampire. Not a speed plane but I bet it will wake up the power system. The only complaint I have these days is that we are limited to only 2 lipos per order.
It should definitely be an improvement, especially if you charge them up to 4.35V! Problem with EDFs (especially foamies) is you need a lot more power to really get them going faster. I had a Lander Panther 70mm with a 10blade fan on 6S and 1500watts...that was starting to get interesting
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Old 07-04-2016, 09:51 PM   #20
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Re: EDF lipos

http://www.rccanada.ca/rccforum/showthread.php?t=262066

You can order as many as you want but they will come two per package. Good thing is that they come quick! 5-6 days door to door . Check out the thread above for some more info. I just got a bunch more revo packs this week and a bump coming this week. For those interested I have a less 10% coupon that still works. Code = Rusk14
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