Product Details
- Shipping Weight: 1 ounces (View shipping rates and policies)
- ASIN: B004KGTM90
- Amazon Best Sellers Rank: 1,189 in Toys ; Games (See Top 100 in Toys ; Games)
- 1 inToys ; Games Hobbies Radio Control Parts
By : Syma
Price : $0.30
Product 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 Essential.
Product Characteristics
- 3.7v 150 mAh LI-Po Battery
- Original Factory Replacement
- Under no circumstances leave a Charging Battery Unattended
Customer Reviews
I bought this battery to perform some experiments with rising my flying time. This worked outstanding. I now average about 15-16 minutes flying time, and that is just till is begins to get a small weak. I could simply go one more couple of minutes, but I do not want to push the batteries that difficult, and it really is a lot additional fun flying with charged batteries.
This modification is safe and straightforward. This is simply because these cells use safety circuits to limit more than discharge and more than charge. There are a few precautions although:
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.
2. Use two batteries of equal charge - preferably discharged. This is not vital, but it is much better to get started with two discharged batteries so they do not have any substantial energy if you accidentally brief one thing. Also, it just keeps anything in superior 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 (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 able to charge them anyway).
This is how you make the modification. Very first, the new battery is most likely fully discharged, so fly your heli until 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 simplest 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 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 in all probability harder in the restricted space, and they will not hold as nicely as solder. Then I removed the weight taped in the nose of the canopy. Lastly, you just find the battery more than 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 uncomplicated modification, you will double your flying time - or much more. Each battery has half the existing getting drawn from it, so they keep a larger voltage for a longer time. It is like the first minute or two with a single battery, but for ten-12 minutes. Depending on how tough you fly, even following 14-15 minutes, you can nonetheless fly up to the ceiling. After about 15-16 minutes, I get started to notice that the heli is losing trim and it is harder to sustain lift. I could very easily preserve going yet another couple of minutes, even flying in ground impact, but why push the batteries that challenging. The down side is that it would possibly take three hours to recharge utilizing the USB cable charger. So rather, I am employing the wall plug charger that takes about 1.5 hours or less to fully charge the battery. The heli is also a little nose heavy, but I like that, and quite a few persons add nose weights anyway. With the heavy nose, you continually have forward momentum, and I think it really is a lot easier to control. You can also go seriously quickly in the forward direction, but especially slow backwards and you can't certainly 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 preserve altitude.
two. Complete throttle draws about 1.5A max with a fully charged battery, but typically about 1.35-1.4A.
3. Operating the tail motor draws another .2-.25A.
4. The LED only draws about 12mA, or only 1% of your typical present.
So you see, if you just maintain altitude, drift forward, and only turn appropriate and left, you only draw abut 1.2A. But if you are constantly 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 good 15-16 minutes. Your results may possibly differ.
-Cheers
This was a replacement battery for a Syma 107 that had more than 100 flights. Hope
the new 1 lasts as lengthy. Important issue, with these batteries let them cool just before
and following charging.
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