Tuesday, February 7, 2012

3.7V Li-po Battery for SYMA S107 Original Factory Replacement Part S107G-19

Product Description


Has your Helicopter lost it's power. Will it no longer hold a Charge. This is a Factory Replacement three.7v Li-Po Battery. Light Soldering is Necessary.3.7V Li-po Battery for SYMA S107 Original Factory Replacement Part S107G-19

Product Details

  • Shipping Weight: 1 ounces (View shipping rates and policies)

  • ASIN: B004KGTM90

  • Amazon Best Sellers Rank: 338 in Toys ; Games (See Top 100 in Toys ; Games)

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By : Syma
Price : $5.05
3.7V Li-po Battery for SYMA S107 Original Factory Replacement Part S107G-19

Item Functions

  • three.7v 150 mAh LI-Po Battery

  • Original Factory Replacement

  • Never leave a Charging Battery Unattended

Consumer Reviews


I bought this battery to carry out some experiments with growing my flying time. This worked fantastic. I now common about 15-16 minutes flying time, and that is just till is begins to get a little weak. I could very easily go a different couple of minutes, but I do not want to push the batteries that difficult, and it is a lot even more fun flying with charged batteries.
This modification is protected and simple. This is given that these cells use safety circuits to limit more than discharge and over charge. There are a few precautions though:
1. Use two batteries of equal age. This signifies 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.
2. Use two batteries of equal charge - preferably discharged. This is not important, but it is improved to commence with two discharged batteries so they do not have any substantial power if you accidentally brief something. Also, it just keeps almost everything in better balance from the get started.
3. 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 (end to finish), 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. First, the new battery is almost certainly totally discharged, so fly your heli until the battery is discharged (unless you are utilizing two new cells). Then splice the new battery in parallel with the battery in the heli. I located it easiest to just cut out the existing battery, leaving about equal lengths of red and black wire. Then I trimmed the wires on the new battery to the very 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. Utilizing 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 more than the solder joint and shrunk it. You could also wrap the wires together and cover them with tape, but that is likely harder in the restricted space, and they will not hold as properly as solder. Then I removed the weight taped in the nose of the canopy. Ultimately, you just locate the battery more than the battery holder (see photo) and slide on the canopy - it is a snug fit, so there is no need to tape down the battery.
With this rather simple modification, you will double your flying time - or extra. Every single battery has half the existing becoming drawn from it, so they retain a greater voltage for a longer time. It really is like the to begin with minute or two with a single battery, but for ten-12 minutes. Depending on how hard you fly, even after 14-15 minutes, you can still fly up to the ceiling. Soon after about 15-16 minutes, I begin to notice that the heli is losing trim and it is tougher to maintain lift. I could easily keep going another couple of minutes, even flying in ground effect, but why push the batteries that hard. The down side is that it would most likely take three hours to recharge using the USB cable charger. So instead, I am utilizing the wall plug charger that takes about 1.5 hours or much less to fully charge the battery. The heli is also a little nose heavy, but I like that, and numerous many people add nose weights anyway. With the heavy nose, you normally have forward momentum, and I feel it really is simpler to manage. You can also go definitely quick in the forward direction, but incredibly slow backwards and you cannot really 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 maintain altitude.
2. Complete throttle draws about 1.5A max with a totally charged battery, but ordinarily about 1.35-1.4A.
three. Running the tail motor draws a further .2-.25A.
four. The LED only draws about 12mA, or only 1% of your common present.
So you see, if you just preserve altitude, drift forward, and only turn suitable and left, you only draw abut 1.2A. But if you are continuously zipping up and down and forward and backward, you are drawing about 1.65A. I am possibly somewhere in the middle and I get a excellent 15-16 minutes. Your results might possibly differ.
-Cheers


This was a replacement battery for a Syma 107 that had more than 100 flights. Hope
the new 1 lasts as extended. Essential thing, with these batteries let them cool prior to
and just after charging.

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