What would happen if I used a 1S 25C battery to replace the 20C battery for the helicopter? It's a different li-po battery with 3.7 volts.

No issue, more punch. I have a 45C in mine. Flight times not as long but it moves quick.

So you know if I buy two helicopters if I can change the channel they are on so I can fly them together or will they crash when I try to fly them?

i dont think you can you can bind two heli on the new syma s107 that are different chanel but you cant change chanel change the board for new chanel they will fly in sync just space them apart

Is the battery on board the helicopter replaceable?

It is replaceable, but it requires some skills and knowledge. You'll need a mini Philip screw driver a way to strip the rubber from the wires. I recommend using electrical tape and not scotch tape to seal the wires together when you get a new battery. I recommend buying "10 pairs JST Plug Connector RC Lipo Battery Male/Female" and connecting the wires to these, so the battery can easily be replaced each time it begins to stop holding a charge. Also, if you strip the yellow cable and connect it with a female connection, you'll be able to charge the battery MUCH quicker then if you would the normal way. I'm talking 5-10 minutes instead of 30 minutes. The yellow cable will still work the same with knowing when to stop charging. Plus you can use other r/c li-po batteries that uses 3.7 volt, but because the manufacturer is different, the quality can be so much better!

I also flew mine outdoors, on a calm night. So dark, I could only see the flashing LED's. I was amazed how high it would climb. Once it reached a certain height, I didn't seem to have much control of it. The slightest breeze would send it into the neighbors yard. It may seem odd, but I think the sun light affects the controls. During the day, I'm lucky if I can get it 2 feet off the ground for no more than a few seconds.

ASIN	B00F4WMAAW
Additional Features	Flashing Light
Age Range Description	Adult
Are Batteries Required	Yes
Batteries are Included	Yes
Battery Description	Lithium-Ion Polymer
Best Sellers Rank	#42,732 in Toys & Games ( See Top 100 in Toys & Games ) #13 in Hobby RC Helicopters
Brand Name	SYMA
Color	Red
Customer Package Type	Standard Packaging
Customer Reviews	4.1 out of 5 stars 7,466 Reviews
Global Trade Identification Number	08675458390083
Included Components	Battery
Item Dimensions	17.7 x 7.6 x 3.1 inches
Item Height	3.1 inches
Item Weight	227 Grams
Manufacturer	Tenergy
Manufacturer Maximum Age (MONTHS)	1188.0
Manufacturer Minimum Age (MONTHS)	96.0
Material Type	Aluminum
Model Name	S107G
Model Number	S107G-R
Number of Batteries	1 Lithium Polymer batteries required. (included)
Number of Items	1
Operation Mode	Remote Control
Power Source	Battery Powered
Size	Mini RC Helicopter
Theme	helicopter
Toy Vehicle Form	Helicopter
UPC	888309050137 609224106972 844949003780 787799402740 638142026857 799637364851 845623073853 803224924585 736211306159 802297349387 160654001072 613706966954 787793003264
Unit Count	1 Count

Syma S107/S107G R/C Helicopter with Gyro- Red

Description

Specifications

Common Questions