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 three.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: 1,154 in Toys ; Games (See Top 100 in Toys ; Games)
- 2 inToys ; Games Hobbies Radio Control Parts
By : Syma
Price : $5.44
Product Functions
- three.7v 150 mAh LI-Po Battery
- Original Factory Replacement
- Never leave a Charging Battery Unattended
Client Critiques
I bought this battery to execute some experiments with growing my flying time. This worked amazing. I now average about 15-16 minutes flying time, and that is just until is begins to get a little weak. I could readily go one more couple of minutes, but I do not want to push the batteries that hard, and it really is a lot significantly more entertaining flying with charged batteries.
This modification is secure and uncomplicated. This is for the reason that these cells use security circuits to limit over discharge and more than charge. There are a handful of precautions although:
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.
two. Use two batteries of equal charge - preferably discharged. This is not important, but it is greater to start off with two discharged batteries so they don't have any substantial power if you accidentally short a thing. Also, it just keeps every thing in greater 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 completely 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 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 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. Making use of the double sided tape that held in the old battery, I stuck them together. I then slid some heat shrink over 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 possibly tougher in the limited space, and they won't hold as nicely as solder. Then I removed the weight taped in the nose of the canopy. Finally, you just locate the battery more than the battery holder (see photo) and slide on the canopy - it's a snug fit, so there is no will need to tape down the battery.
With this uncomplicated modification, you will double your flying time - or significantly more. Each and every battery has half the current becoming drawn from it, so they preserve a larger voltage for a longer time. It is like the initially minute or two with a single battery, but for ten-12 minutes. Depending on how difficult you fly, even immediately after 14-15 minutes, you can nevertheless fly up to the ceiling. After about 15-16 minutes, I get started to discover that the heli is losing trim and it is harder to keep lift. I could quickly maintain going one other couple of minutes, even flying in ground effect, but why push the batteries that difficult. The down side is that it would most likely take three hours to recharge utilizing the USB cable charger. So rather, I am making use of the wall plug charger that takes about 1.five hours or much less to totally charge the battery. The heli is also a tiny nose heavy, but I like that, and countless men and women add nose weights anyway. With the heavy nose, you often have forward momentum, and I feel it's much easier to control. You can also go seriously quickly in the forward direction, but particularly 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 keep altitude.
two. Full throttle draws about 1.5A max with a fully charged battery, but commonly about 1.35-1.4A.
three. Running the tail motor draws one more .two-.25A.
4. The LED only draws about 12mA, or only 1% of your average existing.
So you see, if you just maintain altitude, drift forward, and only turn correct and left, you only draw abut 1.2A. But if you are regularly 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 decent 15-16 minutes. Your outcomes may 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 ahead of
and right after charging.
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