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HelicopterMain Discussion › What's a Good Number Per Heli?
02-19-2014 02:03 PM  3 years agoPost 1
RudeRebel

rrNovice

Whitby, Ontario - Canada

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I'm trying to figure out how many batteries makes sense to have per helicopter. Realizing it's mostly a preference thing, there has to be some good logic which makes the quantity the right one. And does this strategy change if you share batteries between multiple helis?

I'm looking for your suggestions, but also the reason that you believe the number to be right. I guess there really is no wrong answer as long as you give a reason.

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02-19-2014 02:23 PM  3 years agoPost 2
Travis MCH

rrApprentice

New Braunfels, Texas, USA

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Number of batteries

The number of batteries you have on hand may be different for different people. Do you have power at your flying site for charging? Is your charger fast? How crowded is your flying site meaning how long before it's your turn again. I have two electrics with two packs for each one and a into. Depending on where I go fly I'm pretty much covered and have never wished I had more batteries. I also have a good charger that will charge multiple packs at once.
The nitro comes in handy when there is no power on site.
Just my two cents.

Fly every chance you get!

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02-19-2014 02:44 PM  3 years agoPost 3
j.marks

rrNovice

California

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batteries

For me the cost of enough batteries to fly for a day without charging would be too high, So I want to have enough to fly and charge without to much delay,

this usually means 3 sets per bird (or size)

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02-19-2014 02:48 PM  3 years agoPost 4
unclejane

rrElite Veteran

santa fe, NM, USA

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As many as you can afford, but I found a good practical number to be 4 packs. If you really want to wear it out and fly continuously, you can have 2 charging and 2 flying.

If it's a light day, you can just bring the 4 packs fully charged and leave the charging setup at home. That gives you 4 flights in the hole if that's all you plan to fly.

On the more-is-better side of things, the more packs you have, the more you spread the wear and tear out among the packs. With 4, you put one cycle on each pack per 4 flights, and so on as you add more.

What I do is charge at home using my deep cycle batts and leave the DC partially depleted. That way, if the flying gets cut short and I still have some fully charged packs left, I can do a regenerative discharge and put some of that energy back into my deep cycle. Then top it off overnight with the cheap batt charger from the auto parts store.

So 4 packs at least is my vote.

LS

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02-19-2014 03:08 PM  3 years agoPost 5
Richardmid1

rrProfessor

Leeds, England

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If its a 450 you could have like 10 packs but you wouldn't have 10 packs for a 700 unless your name was Tareq Alsaadi!

I personally use lots of cheap packs and parallel charge at the field but you could also use fewer more expensive packs and blast them individually on the charger. Personally I believe parallel charging lots of cheap packs is more cost affective.

60% of the time, it works every time!

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02-19-2014 03:33 PM  3 years agoPost 6
Steff Giguere

rrProfessor

St-Eustache, Quebec, Canada

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If it takes 45 minutes to charge a pack get many. I charge 3 12s packs in 26 minutes...therefore have 3 packs per heli.

Team Synergy, Rail blades, Team Scorpion, V-Team

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02-19-2014 03:40 PM  3 years agoPost 7
Ace Dude

rrProfessor

USA

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I'm trying to figure out how many batteries makes sense to have per helicopter. Realizing it's mostly a preference thing, there has to be some good logic which makes the quantity the right one. And does this strategy change if you share batteries between multiple helis?
The number really depends on your charging capabilities and flying habits.

Those who do not have high power charging available at the field or only go to the field for a few flights prefer more battery packs.

Those who have high power field charging available and packs that support high charge rates prefer less packs and charge them more frequently at higher charge rates.

One benefit to having less packs is that battery technology is constantly improving and costs are going down. Less packs is less money spent on something that is constantly improving.

  

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02-19-2014 04:53 PM  3 years agoPost 8
gcm2

rrApprentice

Ft Worth, TX

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What works fine for me for quite awhile now is as follows. I do not normally go to a field with electricity so I charge all at home before going out. And I usually don't take ALL of these
2 5300 batts for 550e = 2 flites
4 5200 batts for 700e = 2 flites
3 4000 batts for my DT520 = 3, and 1/2 the time I only take 2.
3 batts for X3. MUCH less flite time on each.

I've shelled out enough $$ into batts

TREX 700e, Goblins 500 & 570, DT520e, Gaui X3, Synergy E5

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02-19-2014 05:26 PM  3 years agoPost 9
nickt919

rrVeteran

New Orleans, Louisiana

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If you have one heli... 3 sets
Two or more helis... 2 sets each

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02-19-2014 07:22 PM  3 years agoPost 10
Chad Douglas

rrApprentice

seattle, WA USA

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I think it's common sense.... although important to keep track/log their use. More is better. Longevity is certainly the obvious reason.
The downside with big numbers is maintenance and safety. With more packs come the need for more chargers, better storage when not on the flight line, etc.
On the other hand, I have my own field(farm land) and haven't been to a crowded field in years. So it all depends on your circumstances.

You can also have too many. In which case, those not used will eventually perish.

The other consideration is travel. You could only fly with 4 4000 mah packs carry-on at a time.. and that rule/law might be different now.

Chad

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02-19-2014 07:59 PM  3 years agoPost 11
dialtone

rrApprentice

Ontario- Canada

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Batteries

If you can charge at field 3 batteries per Heli.
If you can't charge at field 5 batteries per Heli.

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02-19-2014 08:51 PM  3 years agoPost 12
sabooo

rrVeteran

Allentown, PA area

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I dont normally charge at the field, but may start this year.

My usual plan is this: I want to fly as many packs as I can each time I go flying. If there is no one at the field except me (small club, this happens), That's 12-15 flights. I charge 4 to 6 each for 3 helicopters (500 (6s 3300), 450(6s 1350), and 300(3s 1350) and then grab a few 2s for the 130x just in case.

The big drawback to this is that if I'm waiting turns, I may have batteries to discharge, which is a pain and a time burner. The plus side is no charger, generator or PB batteries at the field.

I limit myself to 6s or smaller packs, which helps control costs.



I was going to take up Origami, but someone said the local club folded.

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02-19-2014 09:44 PM  3 years agoPost 13
jackp332

rrKey Veteran

Claremont, Nh USA

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3. This allows constant flying till you're bored. One to fly, one cooling after flight/pre charge, one on the charger.

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02-19-2014 10:04 PM  3 years agoPost 14
RudeRebel

rrNovice

Whitby, Ontario - Canada

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thank you for all the feedback.

Some background I probably should have added:
The field does have power available and my charger does support fast parallel charging, but I prefer to not have to charge often as it is not overly convenient.
I like to get 10 flights out of my session and will have 2 x 450 helis (Warp and X3) running on 6S.

I chose helis that share specifically so that if one goes down unexpectedly, I can still use the packs on the other heli.

I think I'm gonna start with 6 total (3 each) and see how that goes and increase from there if I am not satisfied. My brain says 6 but my heart says 8 At 6S, cost isn't a heavy concern, but I also don't want to be throwing away money.

not sure if this is a concern or not, or how I need to account for it, but I don't have an indoor option and for 4 month during the winter, I'm essentially grounded. I've searched the threads regarding long term storage so I think it is not an issue.

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02-19-2014 10:33 PM  3 years agoPost 15
Heli_Splatter

rrElite Veteran

USA

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You have to keep in mind that batteries go bad... so don't stock up too many. I buy a couple at the start of each flying season.

I try to keep batteries that can be flown on multiple machines.

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02-20-2014 01:35 AM  3 years agoPost 16
icanfly

rrElite Veteran

ontario

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I try to keep batteries that can be flown on multiple machines.
I wonder if 8 2200mah 11.1v batteries in series/parallel from a 450 can work in a 700e hehe, yup but too much wire, but that's how things can be shared.

As many as you can charge in one session on the charger, 6. (4 to 6 per heli)

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02-20-2014 02:51 AM  3 years agoPost 17
FRANK R

rrApprentice

Scarborough, ontario, canada

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For me, as long as I have two 12s on each of my three 700 Helis , two 6s for my 500 and a good fast charger, I'm good!

Demon in ME... Kosmik = Kostme

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