Syma S107 Battery Problem
Syma S107 Battery Not Charging?
Why Change Your Syma S107 Battery?
Reference for this modification is from www.micro-helicopters.net
1. The battery is not holding its charge as long as it should do. The symptoms of this can be short flight time like only a minute or two and taking too long to charge before light goes out on USB charge connector. Can also cause Syma S107 to spin and not take off-Just not enough battery power.
2. You Might also want to get longer and better fly time compared to the stock Syma S107 battery she has fitted.
3: Most problems happen because you are hammering that poor old battery by re_charging without letting it cool down. It gets hot between flights and needs at least 10- 15 minutes cool down between charges-Otherwise guess it gets over charged and really bloats and screws the cells in simple terms-Follow This Tip! for battery life-buy two Syma S107 so one is always ready for flight and time to cool battery.- : Serious : Then you are always flying dude!!
Obviously, the safest approach is to insert a original replacement battery to ensure that all is as factory. To do this you'll need to find a battery with same specs as the Syma S107 original battery. Here is a site to buy a stock replacement battery.
If you want to get a longer fly time better than original Syma battery you will need to get a5.6g 240mah battery. Bearing in mind this is a heavier battery, balance can then be a problem and some weight on the tail might be advised. Be careful going in this direction unless you know what you are doing.
Red and Black wires-Cut with care
Insert New Battery
Attach canopy with two screws
Re -charge-if flight not good it will be a balance problem: Re adjust battery position: I attach the wires by electrical tape- But better still is to use Liquid Electrical Tape -you could use a plastic heat tube-to me to much work as many flights later the battery will die again. Make sure Main rotors lines up with the center of BLADES.
Reference for this modification is from www.micro-helicopters.net great site to visit-good info and straight shooter!
And some photos from RcDiscuss
Battery Mod Update 06/15/2011: Modification by Dale.Really neat way to put different battery on the Syma S107. View Post Here