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 3.7v Li-Po Battery. Light Soldering is Necessary.
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 : $5.45
Item Features
- 3.7v 150 mAh LI-Po Battery
- Original Factory Replacement
- Never ever leave a Charging Battery Unattended
Buyer Reviews
I purchased this battery to carry out some experiments with growing my flying time. This worked excellent. I now average about 15-16 minutes flying time, and that is just till is starts to get a small weak. I could conveniently go an additional couple of minutes, but I do not want to push the batteries that difficult, and it's a lot additional fun flying with charged batteries.
This modification is secure and quick. This is simply because these cells use safety circuits to limit over discharge and more than charge. There are a few precautions even though:
1. Use two batteries of equal age. This implies 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 critical, but it is better to start with two discharged batteries so they do not have any substantial energy if you accidentally brief one thing. Also, it just keeps every little thing in improved balance from the start off.
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. Initial, the new battery is almost certainly fully discharged, so fly your heli till the battery is discharged (unless you are working with two new cells). Then splice the new battery in parallel with the battery in the heli. I discovered 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 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. Applying 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 probably 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's a snug fit, so there is no need to tape down the battery.
With this straightforward modification, you will double your flying time - or far more. Every single battery has half the existing being drawn from it, so they retain a greater voltage for a longer time. It really is like the 1st minute or two with a single battery, but for 10-12 minutes. Depending on how difficult you fly, even soon after 14-15 minutes, you can nonetheless fly up to the ceiling. Right after about 15-16 minutes, I begin to notice that the heli is losing trim and it is harder to keep lift. I could quickly maintain going an additional couple of minutes, even flying in ground impact, but why push the batteries that hard. The down side is that it would most likely take 3 hours to recharge working with the USB cable charger. So rather, I am employing the wall plug charger that takes about 1.5 hours or much less to totally charge the battery. The heli is also a little nose heavy, but I like that, and several people add nose weights anyway. With the heavy nose, you consistently have forward momentum, and I consider it really is simpler to control. You can also go honestly quick in the forward direction, but pretty slow backwards and you can't 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 sustain altitude.
two. Complete throttle draws about 1.5A max with a fully charged battery, but ordinarily about 1.35-1.4A.
3. Operating the tail motor draws a different .two-.25A.
four. The LED only draws about 12mA, or only 1% of your average existing.
So you see, if you just sustain altitude, drift forward, and only turn correct 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 most likely somewhere in the middle and I get a fine 15-16 minutes. Your results could vary.
-Cheers
This was a replacement battery for a Syma 107 that had over 100 flights. Hope
the new one particular lasts as lengthy. Important factor, with these batteries let them cool before
and soon after charging.
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