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HeliHobby . Ron’s HeliProz South . Century Helicopter

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e-Hirobo SRB Quark - Lepton - XRB Coaxial > Self made 1100ma for XRB Lama
 
 
alexl
Heliman
Location: Hong Kong

I made a 7.4v 1100ma battery. Just fit the space and flight time can be extended to 25 mins. haha.
01-16-2005 Over year old.
 
 
Laurens
Key Veteran
Location: NL, behind my computer

Is it rechargable with the standard charger?
01-16-2005 Over year old.
 
 
Airwolf crazy
Senior Heliman
Location: Lancaster, PA

Overheating?

Greetings,

Good job making you battery, however...

I thought the point of doing short flights, like 5- 10 min., was to keep the motors from overheating and therefore increase their lifespan.

Christopher
01-16-2005 Over year old.
HOMEPAGE  
 
 
alexl
Heliman
Location: Hong Kong

Actually, I have a 11.1v 1100mA. I took out one cell and re-soldered the wiring with balanced charging wiring. Size was just fitted to XRB. Same Hirbo charger can be used.

Over heating may be problem. But I will let it landing for cooling instead of non-stop flying.
01-17-2005 Over year old.
 
 
HeliHorrible
Heliman
Location: Wichita, Kansas 67207

Where do I get more packs?

Where do I get more packs? If I am going to do this MOD....tell me more about how you did it...I don't know about wiring....

I would just like to have more packs to run her longer...I do sit the heli down on occasion every 2 - 3 minutes when my concentration runs thin I guess it also helps to cool the motors....
01-17-2005 Over year old.
 
 
alexl
Heliman
Location: Hong Kong

You may purchase general 7.4v 1100ma Li-polymer with little modification as below wiring connection.


+ Cell - + Cell -
Red White Black
wire wire wire

Of course, you need to purchase similar connector plug but not easy.
I use separate pin(cut from servo wire) for each wire connection. May be I will post my battery photo later.
01-17-2005 Over year old.
 
 
Helimex
Senior Heliman
Location: Oklahoma

I wouldn't recommend changing batteries, unless of course you're ok with changing burned out motors.
01-17-2005 Over year old.
HOMEPAGE  
 
 
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MTA Hobbies . Model Rectifier Corp . RCHover

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e-Hirobo SRB Quark - Lepton - XRB Coaxial > Self made 1100ma for XRB Lama
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