3.7V Li-po Battery for SYMA S107 Original Factory Replacement Part S107G-19
Item Description
Has your Helicopter lost it really is power. Will it no longer hold a Charge. This is a Factory Replacement 3.7v Li-Po Battery. Light Soldering is Required.
Product Details
- Shipping Weight: 1 ounces (View shipping rates and policies)
- ASIN: B004KGTM90
- Amazon Best Sellers Rank: 883 in Toys ; Games (See Top 100 in Toys ; Games)
- 2 inToys ; Games Hobbies Radio Control Parts
By : Syma
Price : $0.50
Item Attributes
- three.7v 150 mAh LI-Po Battery
- Original Factory Replacement
- Under no circumstances leave a Charging Battery Unattended
Buyer Critiques
I bought this battery to execute some experiments with rising my flying time. This worked wonderful. I now typical about 15-16 minutes flying time, and that is just till is starts to get a little weak. I could simply go an additional couple of minutes, but I do not want to push the batteries that tough, and it really is a lot much more entertaining flying with charged batteries.
This modification is safe and very easy. This is considering that these cells use safety circuits to limit more than discharge and over charge. There are a handful of precautions even though:
1. Use two batteries of equal age. This indicates a new battery in a new heli and a new replacement battery, or two new replacement batteries. Do not mix a new replacement battery with an old, worn out battery.
two. Use two batteries of equal charge - preferably discharged. This is not vital, but it is greater to commence with two discharged batteries so they don't have any significant energy if you accidentally short a thing. Also, it just keeps every thing in improved balance from the start out.
three. Hook up the batteries in parallel - red to red and black to black. This doubles the battery capacity and increases the flying time. If you hook them up in series (finish to end), you will double the voltage, which will burn out the motors if it does not fry the heli's circuit board (and you will not be able to charge them anyway).
This is how you make the modification. Initially, the new battery is in all probability fully discharged, so fly your heli till the battery is discharged (unless you are making use of two new cells). Then splice the new battery in parallel with the battery in the heli. I discovered it simplest to just cut out the current battery, leaving about equal lengths of red and black wire. Then I trimmed the wires on the new battery to the exact same length. I then stripped and tinned all the wire ends. I then soldered the two batteries together, red to red and black to black. Working with the double sided tape that held in the old battery, I stuck them together. I then slid some heat shrink more than the wires coming from the heli. I then lap soldered the battery wires to the heli wires, red to red and black to black. I then slid up the heat shrink over the solder joint and shrunk it. You could also wrap the wires together and cover them with tape, but that is in all probability tougher in the limited space, and they will not hold as well as solder. Then I removed the weight taped in the nose of the canopy. Lastly, you just locate the battery over the battery holder (see photo) and slide on the canopy - it really is a snug fit, so there is no need to tape down the battery.
With this straightforward modification, you will double your flying time - or a great deal more. Each and every battery has half the present getting drawn from it, so they preserve a greater voltage for a longer time. It is like the very first minute or two with a single battery, but for 10-12 minutes. Based on how challenging you fly, even just after 14-15 minutes, you can still fly up to the ceiling. Following about 15-16 minutes, I start to notice that the heli is losing trim and it is harder to preserve lift. I could quickly maintain going a further couple of minutes, even flying in ground effect, but why push the batteries that tough. The down side is that it would possibly take three hours to recharge utilizing the USB cable charger. So as an alternative, I'm working with the wall plug charger that takes about 1.5 hours or less to totally charge the battery. The heli is also a small nose heavy, but I like that, and various men and women add nose weights anyway. With the heavy nose, you often have forward momentum, and I think it really is simpler to manage. You can also go honestly rapidly in the forward direction, but very slow backwards and you cannot seriously hover. You can also add counter weights to the tail (like the weight from the nose) if you do not like it.
Some other notes on battery life:
1. I estimate that the heli draws about 1.2A to sustain altitude.
2. Full throttle draws about 1.5A max with a fully charged battery, but in most cases about 1.35-1.4A.
3. Operating the tail motor draws yet another .2-.25A.
4. The LED only draws about 12mA, or only 1% of your average current.
So you see, if you just keep altitude, drift forward, and only turn ideal and left, you only draw abut 1.2A. But if you are continually zipping up and down and forward and backward, you are drawing about 1.65A. I am likely someplace in the middle and I get a fine 15-16 minutes. Your results may possibly vary.
-Cheers
This was a replacement battery for a Syma 107 that had more than 100 flights. Hope
the new a single lasts as extended. Key point, with these batteries let them cool ahead of
and soon after charging.
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