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 less time. This charger will not perform appropriately on Fake Syma S107 do to the fact they are wired diffrently
Product Details
- Shipping Weight: 10.1 ounces (View shipping rates and policies)
- ASIN: B004DETSN4
- Amazon Best Sellers Rank: 23 in Toys ; Games (See Top 100 in Toys ; Games)
- 1 inToys ; Games Hobbies Radio Control Accessories Battery Chargers
By : Syma
Price : $4.52
Item Features
- 110V Charger for Syma Mini Helicopters
- Can be put to use on Syma Helicopters with modest white Charging Plug
- Faster Charging with less Battery Drain on Transmitter.
Client Evaluations
The charger has a fixed plug for North American outlets. The input is rated 100-240VAC, 50-60Hz. The output is rated 4.2VDC, 350mA (it is about four.6VDC open circuit). There is an LED that lights dark yellow during charge, and green when charge is full and when no battery is connected.
The LED basically starts to turn into a lighter yellow when the battery reaches 4.1V, a lighter yellow-green at four.15V, and is green at four.2V. If you only charge to 4.1V, you will get a lot more cycles but if you charge to 4.2V, you get a longer flight time - it basically averages out.
Through my testing, this charger only put out its rated output on very discharged batteries and just for a minute. It is commonly only placing out about 250mA following 5 minutes, with the battery at about 3.87V. The battery will reach 4.1V following about 40 minutes. It takes yet another 15 minutes to reach four.2V, which can give you an extra minute flight time.
So you can see why I am a small dubious about people today claiming that this charges their battery in 15-20 minutes. If accurate, 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 quickly than the USB cable charger, and the LED gives a trustworthy indication of when the battery is filly charged. I'm only giving it three-stars considering the output is weak (which is possibly superior for a single 150mAh battery - I use 2 in parallel for 300mAh, with a 1.five hour charge time, and a 15-16 minute flight time), and it would be great if the voltage was limited to 4.2V to reduce 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 4.1V in about 60 minutes, and 4.2V in about 85 minutes. The USB plug will start off an occasional dim blink at about 3.93V and 35 minutes a dim glow/blink at about 3.96V and 40 minutes and a dim glow at about 3.99V and 45 minutes. The glow will get brighter as the voltage increases. Right after about two hours, the battery voltage is 4.3V and climbing.
With either the wall plug charger, or the USB cable charger, due to the fact they both have an open circuit voltage of 4.6V, I can only assume the battery will preserve rising in voltage till the safety circuit in the battery cuts off the charge. This may possibly ultimately protect the battery from failure, but is still not beneficial to charge LiPo batteries over 4.2V. Do not leave the battery on either charger for extended periods.
This charger is great. 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 way more. Well worth it and a superb addition to the S107
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