110v Charger for SYMA Mini Helicopters S107 S105 S009 and others
Product Description
Charge your Syma helicopter with out having to drain your transmitter batteries or use a computer system in much less time. This charger will not work appropriately on Fake Syma S107 do to the reality they are wired diffrently
Product Details
- Shipping Weight: 10.1 ounces (View shipping rates and policies)
- ASIN: B004DETSN4
- Amazon Best Sellers Rank: 31 in Toys ; Games (See Top 100 in Toys ; Games)
- 1 inToys ; Games Hobbies Radio Control Accessories Battery Chargers
By : Syma
Price : $4.18
Product Capabilities
- 110V Charger for Syma Mini Helicopters
- Can be utilised on Syma Helicopters with compact white Charging Plug
- More quickly Charging with less Battery Drain on Transmitter.
Customer Reviews
The charger has a fixed plug for North American outlets. The input is rated 100-240VAC, 50-60Hz. The output is rated four.2VDC, 350mA (it really is about 4.6VDC open circuit). There is an LED that lights dark yellow during charge, and green when charge is total and when no battery is connected.
The LED actually begins to turn out to be a lighter yellow when the battery reaches four.1V, a lighter yellow-green at 4.15V, and is green at four.2V. If you only charge to 4.1V, you will get far more cycles but if you charge to 4.2V, you get a longer flight time - it fundamentally averages out.
Through my testing, this charger only put out its rated output on particularly discharged batteries and just for a minute. It is commonly only placing out about 250mA following five minutes, with the battery at about 3.87V. The battery will reach 4.1V just after about 40 minutes. It takes a different 15 minutes to reach 4.2V, which might give you an extra minute flight time.
So you can see why I'm a small dubious about individuals claiming that this charges their battery in 15-20 minutes. If correct, I have to assume their batteries are old and only give a couple of minutes flight time. I in most cases get about 7-8 minutes.
Nonetheless, this will charge the battery 20-40 minutes more rapidly than the USB cable charger, and the LED provides a reliable indication of when the battery is filly charged. I am only giving it 3-stars considering the output is weak (which is almost certainly superior for a single 150mAh battery - I use two in parallel for 300mAh, with a 1.5 hour charge time, and a 15-16 minute flight time), and it would be nice if the voltage was limited to 4.2V to decrease overcharging the battery.
I also measured the USB cable charger. It puts out about 250mA max, and the open circuit voltage is about four.6V. The battery reaches four.1V in about 60 minutes, and four.2V in about 85 minutes. The USB plug will start an occasional dim blink at about 3.93V and 35 minutes a dim glow/blink at about three.96V and 40 minutes and a dim glow at about 3.99V and 45 minutes. The glow will get brighter as the voltage increases. Soon after about two hours, the battery voltage is 4.3V and climbing.
With either the wall plug charger, or the USB cable charger, given that they both have an open circuit voltage of four.6V, I can only assume the battery will maintain increasing in voltage until the safety circuit in the battery cuts off the charge. This may ultimately defend the battery from failure, but is nonetheless not really good to charge LiPo batteries more than four.2V. Do not leave the battery on either charger for extended periods.
This charger is terrific. When I charge with the USB it takes about 1hr. This charger cuts it down to about 20-25 minutes. This truely lets you use your helicopter a great deal more. Properly worth it and a awesome addition to the S107
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