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› 4x1550 or 3x2200? + low voltage alarm question
01-22-2007 11:48 PM  10 years agoPost 1
motorheadwannab

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Phoenix, AZ - USA

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Hey so I am getting ready to buy a few batteries from united hobbies. there are 2 batteries I am looking at. the one battery is 15-25c 1550mah and weighs 140g. The other is 20-30c 2200mah and weighs 220g. I can afford 4 of the 1550 batteries or 3 of the 2200's. Which should I buy, both will fit in my heli. I am just learning so I really don't need that power of the 20-30c but if you do the math there is more mah's in that battery...but it is considerably heavier. Which should I buy? I know there are other batteries on the page but doing the math these are the ones that make sense. (keeping it around $100) Thanks

The 2200mah-
https://www.unitedhobbies.com/UNITE...?idProduct=2045

The 1550mah-

https://www.unitedhobbies.com/UNITE...p?idProduct=661

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01-23-2007 12:15 AM  10 years agoPost 2
electricdurango

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Sterling, VA

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what heli?

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01-23-2007 12:20 AM  10 years agoPost 3
motorheadwannab

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Phoenix, AZ - USA

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x400, fully stock, wood blades, 3200kv motor, rcexpert esc

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01-23-2007 01:06 AM  10 years agoPost 4
electricdurango

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Sterling, VA

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2200mah are good. You are gonna run into a problem with the weight. 220g is a lot for a 3s that size. a good 3s 2000-2200 should be around 165-180g

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01-23-2007 01:13 AM  10 years agoPost 5
MJWS

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Airdrie, AB - Canada

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I'd get the 2200's. You'll enjoy the extra flight time. Plus as you improve you'll be able to push them a little harder. The 1550's won't transfer very well to a more powerful or even slightly larger set up.

The extra headroom in the batteries is a good idea when running off brand batts. It might say 30C... but I wouldn't push them nearly that hard if I was you. The 1550's will be pushed already.

I'd probably try a couple of each or 2 1550's and a 2200 if I were you. The order is going in anyway, you'll eventually put both sizes to work. Why not see what you like. You might like the lighter setup, or appreciate the extra mass in the wind depending on where and how you fly.

Mike

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01-23-2007 01:23 AM  10 years agoPost 6
motorheadwannab

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Phoenix, AZ - USA

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Thanks for the replys guys, i looked back and it says "packed weight" so they must include the box and those heavy shipping peanuts. I think I will mix them up, maybe get 2 of the 2200 and a 1550

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01-23-2007 04:42 AM  10 years agoPost 7
motorheadwannab

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Phoenix, AZ - USA

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LV BUZZER

Hey so I am thinking as I fried 2 cheap batteries that I should bet a voltage buzzer. My esc says it has a built in one (it is the rcexpert 40a) but I'm not sure I trust it...would you? I am looking at this-https://www.unitedhobbies.com/UNITEDHOBBIES/store/comersus_viewItem.asp?idProduct=2160

It is basically a bec with a buzzer, do you think I could just use it as a buzzer because I don't have any more places on my rx and my esc has a built in bec so I don't really need that feature. It sounds like a legit low voltage buzzer tho, goes off at 3v. What do you think...

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