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 Expected.

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: 1,021 in Toys ; Games (See Top 100 in Toys ; Games)
3 inToys ; Games Hobbies Radio Control Parts

By : Syma
Price : $5.40

Item Functions

3.7v 150 mAh LI-Po Battery
Original Factory Replacement
In no way leave a Charging Battery Unattended

Consumer Critiques

I bought this battery to carry out some experiments with growing my flying time. This worked great. I now average about 15-16 minutes flying time, and that is just until is starts to get a small weak. I could without difficulty go one more couple of minutes, but I don't want to push the batteries that difficult, and it's a lot additional entertaining flying with charged batteries.
This modification is protected and straightforward. This is for the reason that these cells use safety circuits to limit over discharge and over charge. There are a few precautions even though:
1. Use two batteries of equal age. This suggests 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 important, but it is better to commence with two discharged batteries so they do not have any important energy if you accidentally brief some thing. Also, it just keeps every little thing in far better balance from the start.
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 won't be in a position to charge them anyway).
This is how you make the modification. First, the new battery is probably completely 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 identified 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 similar 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 over the solder joint and shrunk it. You could also wrap the wires together and cover them with tape, but that is almost certainly harder in the limited space, and they will not hold as nicely as solder. Then I removed the weight taped in the nose of the canopy. Finally, 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 desire to tape down the battery.
With this rather simple modification, you will double your flying time - or significantly more. Every battery has half the existing getting drawn from it, so they maintain a larger voltage for a longer time. It really is like the initial minute or two with a single battery, but for 10-12 minutes. Depending on how tricky you fly, even right after 14-15 minutes, you can nevertheless fly up to the ceiling. Soon after about 15-16 minutes, I get started to notice that the heli is losing trim and it is harder to maintain lift. I could effortlessly hold going a further couple of minutes, even flying in ground impact, but why push the batteries that difficult. The down side is that it would quite possibly take three hours to recharge utilizing the USB cable charger. So rather, I'm working with the wall plug charger that takes about 1.five hours or much less to fully charge the battery. The heli is also a small nose heavy, but I like that, and numerous people add nose weights anyway. With the heavy nose, you normally have forward momentum, and I think it is a lot easier to manage. You can also go certainly rapid in the forward path, but quite slow backwards and you cannot honestly hover. You can also add counter weights to the tail (like the weight from the nose) if you don't like it.
Some other notes on battery life:
1. I estimate that the heli draws about 1.2A to retain altitude.
2. Full throttle draws about 1.5A max with a fully charged battery, but typically about 1.35-1.4A.
three. Running the tail motor draws an additional .2-.25A.
4. The LED only draws about 12mA, or only 1% of your common existing.
So you see, if you just retain altitude, drift forward, and only turn correct and left, you only draw abut 1.2A. But if you are consistently zipping up and down and forward and backward, you are drawing about 1.65A. I am in all probability someplace in the middle and I get a decent 15-16 minutes. Your outcomes might possibly differ.
-Cheers

This was a replacement battery for a Syma 107 that had over 100 flights. Hope
the new one lasts as extended. Key issue, with these batteries let them cool ahead of
and after charging.