HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old May 04, 2012, 02:57 PM
Heli Mania
Hayabusa Heli's Avatar
PNW
Joined Dec 2010
2,604 Posts
Quote:
Originally Posted by Proud Infidel View Post
Don't bother with those. There's no confirmation that they're 150 mAh. Here are 5 batteries for $9.99 with free shipping.
What size are those? ... doesn't say.
Hayabusa Heli is offline Find More Posts by Hayabusa Heli
Reply With Quote
Sign up now
to remove ads between posts
Old May 04, 2012, 03:20 PM
Registered User
Apphoard's Avatar
Joined Mar 2011
462 Posts
Quote:
Originally Posted by Jake8131 View Post
Got my 5 batteries in the mail today...not bad for $10.

Don't know what size they are.....here is what is written on the batery:

TC531136
LC25
The pic Fire cabbage showed. The 150mah had +and- signs on it. Do those you have?
Apphoard is offline Find More Posts by Apphoard
Reply With Quote
Old May 04, 2012, 03:27 PM
USAF Retired - 1968-1988
Jake8131's Avatar
United States, IL, Mascoutah
Joined Dec 2010
3,295 Posts
Quote:
Originally Posted by Hayabusa Heli View Post
What size are those? ... doesn't say.
Those are the ones i got....from AliExpress, 5 for $9.99. Just wondering what the ratings were on them? 120, 130 or 150.
Jake8131 is online now Find More Posts by Jake8131
Reply With Quote
Old May 04, 2012, 03:27 PM
USAF Retired - 1968-1988
Jake8131's Avatar
United States, IL, Mascoutah
Joined Dec 2010
3,295 Posts
Quote:
Originally Posted by Apphoard View Post
The pic Fire cabbage showed. The 150mah had +and- signs on it. Do those you have?
No + or - signs.
Jake8131 is online now Find More Posts by Jake8131
Reply With Quote
Old May 04, 2012, 03:28 PM
Registered User
Apphoard's Avatar
Joined Mar 2011
462 Posts
Quote:
Originally Posted by Proud Infidel View Post
Don't bother with those. There's no confirmation that they're 150 mAh. Here are 5 batteries for $9.99 with free shipping.
I emailed this guy the other day he said these are 150's. Five for $9.99

I ordered them yesterday so in 2 or 3 weeks I will find out for sure. But I believe him.

Ben Cai: Hello,it is 150mAh ,Li-po battery

>>> Keithstout75 Wed May 02 11:40:00 PDT 2012 >>>
Can you please tell me what mah are these batteries? Are they 130mah? are they 120mah? Which battery are these?
Apphoard is offline Find More Posts by Apphoard
Last edited by Apphoard; May 04, 2012 at 03:34 PM.
Reply With Quote
Old May 04, 2012, 03:43 PM
Registered User
Apphoard's Avatar
Joined Mar 2011
462 Posts
Quote:
Originally Posted by Jake8131 View Post
No + or - signs.
If they are just a little longer than the stock ones. I think they are the 130's. I like the 130's plenty of power and they are not to big.

The 150's may be a little big. Atleast in the stock placement. But maybe not I don't think anyone knows yet.
Apphoard is offline Find More Posts by Apphoard
Reply With Quote
Old May 04, 2012, 03:55 PM
9958 gave me the toilet bowl
Proud Infidel's Avatar
United States, IL, Rockford
Joined Jan 2012
1,257 Posts
Guys,

The original batteries were 37 mm in length.
The latest ones I got are 42 mm in length.

The code "LC11" I believe stands for 2012 March 11.

There's no way to verify that the 42 mm long batteries are 130 mAh.
If those salesmen claiming 150 mAh batteries are 42 mm long, I'll assume they're lieing.

The batteries have never been marked 120 mAh, 130 mAh, or 150 mAh.
Proud Infidel is offline Find More Posts by Proud Infidel
Reply With Quote
Old May 04, 2012, 04:15 PM
CURIOSITY Has Landed!
Fugitive_Bill's Avatar
Sydney, Australia
Joined Jul 2005
1,162 Posts
Well that brings up point for me me.
Exactly how does one measure the AMPERAGE output of of battery to confirm it supplies what it is claimed to supply?

Somehow put put it across the AMP input of a Multimeter with some sort of shunt/load across it?
I have no idea!

-B!LL!
Fugitive_Bill is online now Find More Posts by Fugitive_Bill
Reply With Quote
Old May 04, 2012, 04:32 PM
Registered User
Canada, ON, Iroquois
Joined Mar 2012
555 Posts
Quote:
Originally Posted by Fugitive_Bill View Post
Well that brings up point for me me.
Exactly how does one measure the AMPERAGE output of of battery to confirm it supplies what it is claimed to supply?

Somehow put put it across the AMP input of a Multimeter with some sort of shunt/load across it?
I have no idea!

-B!LL!
Maybe this will help
http://www.youtube.com/watch?v=EePonRXKiG8
SG Mason Knives is offline Find More Posts by SG Mason Knives
Reply With Quote
Old May 04, 2012, 05:00 PM
RC beginner
New York
Joined Oct 2008
6,054 Posts
Quote:
Originally Posted by Fugitive_Bill View Post
Well that brings up point for me me.
Exactly how does one measure the AMPERAGE output of of battery to confirm it supplies what it is claimed to supply?

Somehow put put it across the AMP input of a Multimeter with some sort of shunt/load across it?
I have no idea!

-B!LL!
doing that can destroy the lipo and the meter. milliamps and milliamphours are not the same thing. current supply abilty ("c" rating) is different from capacity (mah). the only way to check capacity is with a charger equipped with that feature. i strongly suggest spending some time in the battery forum of rc groups. specially the stickies.
dave1993 is offline Find More Posts by dave1993
Reply With Quote
Old May 04, 2012, 05:02 PM
Registered User
Joined Sep 2007
479 Posts
Quote:
Originally Posted by Fugitive_Bill View Post
Well that brings up point for me me.
Exactly how does one measure the AMPERAGE output of of battery to confirm it supplies what it is claimed to supply?

Somehow put put it across the AMP input of a Multimeter with some sort of shunt/load across it?
I have no idea!

-B!LL!
Characterizing a battery is harder than just a volt or ampmeter.
Though I guess you could do it...
There is specialized equipment for this specific purpose.
Early on, someone posted graphs of various batteries, but I don't think I've seen one of the 120mAH vs 130mAH and nothing on the "new 150mAH".

The important characteristics of a battery for a heli are:

1. Weight
2. Capacity (mAH = milli amp hours = energy = how many milliamps can it supply for an hour). Not everyone ends the timing at the point that the heli can no longer fly, so this is always suspect.
3. C rating = power. Higher C gives more punch.
"C" is the rating of the max current a battery can/should put out relative to it's "capacity". A 20C, 120mAH battery can be discharged at 20 times 120mA = 2400mA. Note that you'll get somewhere less than 1/20th an hour out of it.
1/20th hour is only 3 minutes, but you're not always pulling 20C, so it lasts longer.
The fact that we get 5 minutes indicates about 12C average.
Exceeding 20C will cause heat and possible damage.

A 25C 130mAH battery can discharge at 25 * 130mA = 3250.
So while the capacity is only 8% more, the max current is 35% more.

Even when not drawing max current from a battery, those with higher C ratings will lose/waste less energy in heat.
This probably helps offset the increased weight with only 8% more capacity.

The 130's are heavier, but have a noticeably more punch.
Most people report that the extra capacity outweighs the extra weight and they get longer flight times.

When I switch from a "dead" 120 to a fresh 130, I almost always shoot my Corter into the ceiling from the extra punch. Very noticeable (especially after the 120 being low).
Extra punch = If you're dropping fast and punch full throttle, the 130's can keep you from hitting the ground when the 120's wouldn't have been able to.
I think they last longer, though I haven't really timed it.

I put two layers of duct tape on the bottom of my 130's to help prevent damage as they do hit ground when you land (especially when you "land" hard).

I'd like to see a report from someone who has the 150's before I replace all the 130's I have.
RicksterRC is offline Find More Posts by RicksterRC
Reply With Quote
Old May 04, 2012, 05:17 PM
Registered User
Joined Sep 2007
479 Posts
Quote:
Originally Posted by SG Mason Knives View Post
That video shows a workable setup for measuring instantaneous under a very low load.
(It also demonstrates many bad "habits". always rotate the knob before connecting the leads. If you're wanting to measure voltage and accidentaly go past A/mA, the fuses in the meter will blow).

With this setup, a 2200mAH AA, it would take almost week to discharge...
Obviously not a setup indicative of the situation we're trying to simulate.

There is equipment (chargers) designed to do this load testing for you.
RicksterRC is offline Find More Posts by RicksterRC
Last edited by RicksterRC; May 04, 2012 at 07:45 PM.
Reply With Quote
Old May 04, 2012, 06:12 PM
Registered User
Canada, ON, Ottawa
Joined Jun 2009
3,216 Posts
Quote:
Originally Posted by Proud Infidel View Post
Guys,

The original batteries were 37 mm in length.
The latest ones I got are 42 mm in length...
My 4 "originals" are all about 42mm long, they were labelled LA and LB.
Wasp09 is offline Find More Posts by Wasp09
Reply With Quote
Old May 04, 2012, 06:18 PM
Registered User
Joined May 2011
6 Posts
Done with V911's?

I've had 2 V911's and had nothing but problems including:
- intermittent binding
- blown tail motors
- breaking PCB's
- intermittent TX turning off
- other stuff like busted flybars, but I dont mind that

Is it just me or does everyone else spend more time fixing than flying these things? Admittedly I still crash, but only 1-2 times per battery. I consider myself reasonably good - no probs flying under tables, fig8s, nose in tail in hover etc

What heli should I get next? A better FP (Solo Pro?) or a CP (MCPx)?
cskipsey is offline Find More Posts by cskipsey
Reply With Quote
Old May 04, 2012, 06:18 PM
We NEED a LiPo w a USB plug!!!
IceRail's Avatar
Orland Park, Illinois
Joined Feb 2010
426 Posts
Quote:
Originally Posted by SG Mason Knives View Post
Nothing can tempt me now, because I got this, and everything else, less electronics to go with it. I still have a hard time believing that a 600 is as big as it is even though its sitting right here beside me



the whole thing is almost big enough for my V911 to sit under it


That looks kinda like a.....

Oh, wait...


Hey, SG Mason Knives - just for us ... could you paint "CORTER" on the side?!?
IceRail is offline Find More Posts by IceRail
Last edited by IceRail; May 04, 2012 at 06:31 PM.
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
New Product Jiuchon 9C002, a Solo Pro clone? SoloProFan Micro Helis 103 Feb 29, 2012 02:24 PM
Discussion Interesting Solo Pro? Clone gordonzo Micro Helis 46 Nov 30, 2011 03:15 AM
Question Which 100 sized heli after Solo Pro? Tuc Micro Helis 16 Jun 13, 2011 01:52 PM
Sold $100 !NEW ARF Storm 250 (Trex Clone) With Align Upgrades, Tons of Extras! $100!! RChelisrule Aircraft - Electric - Helis (FS/W) 1 May 31, 2011 12:26 AM