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Posts Tagged ‘Nano-Tech’
The 1S 3.7V 300 mAh Turnigy Nano-Tech 45C LiPo batteries are designed for use with small scale RC helicopters such as Blade mCPX and other similar models such as WLtoys v922 or Turnigy FBL100 and others. These are intended for a direct replacement with higher capacity and a much higher discharge rates (at least in terms of written specs). The Turnigy brand from Hobby King usually comes at very attractive prices and very good ratings, though we are used to seeing the batteries actually not performing as good as their specs say they should, so our expectations here are to see lower discharge rates than advertised.
Official Battery Specifications:
– Capacity: 300mAh
– Voltage: 1S1P / 1 Cell / 3.7V
– Discharge: 45C Constant
– Discharge: 90C Burst
– Weight: 8g
– Dimensions: 44x6x17mm
– Discharge Plug: E-Flight Ultra Micro
We have started the tests with a 1C discharge rate (0.3A) for the 1S 3.7V 300 mAh Turnigy Nano-Tech 45C LiPo battery and we’ve managed to get 320 mAh as a maximum capacity, or a bit over the manufacturer rating for this battery or with other words a pleasant surprise for a start. Increasing the constant current load further to 5C, 10C, 15C and even 20C and the battery still manages to provide capacity close to its manufacturer rating. At 25C discharge it is still handing Ok and offers decent capacity, but at 30C we see that it is already too much for the battery to handle and the rating is 45C as a constant discharge rate for the battery. The actual rating for these batteries for constant current discharge should be more like 25C and not 45C, but the capacity at the real discharge rates that the battery can handle are quite good.
The performance of the 1S 3.7V 300 mAh Turnigy Nano-Tech 45C LiPo battery in our tests:
– 320 mAh at 0.3A load (1C)
– 300 mAh at 1.5A load (5C)
– 299 mAh at 3.0A load (10C)
– 292 mAh at 4.5A load (15C)
– 279 mAh at 6.0A load (20C)
– 193 mAh at 7.5A load (25C)
– 19 mAh at 9.0A load (30C)
The 1S 3.7V 160 mAh Turnigy Nano-tech 25-40C LiPo batteries are designed for use with small scale RC helicopters as a replacement batteries for the originals upplied with the compatible radio controlled model. The Turnigy brand by Hobby King (one of the largest online RC model stores) so far got us with mixed results when testing different batteries, for example LiPos often turn out to be with overrated specs than what they really can provide, but with the Turnigy AA/AAA NiMHs for example we got very good results. So let us see what this Turnigy Nano-tech LiPo battery can provide in our tests…
Official Battery Specifications:
– Capacity: 160 mAh
– Voltage: 1S1P / 1 Cell / 3.7V
– Discharge: 25C Constant / 40C Burst
– Weight: 4.3g (including plug & case)
– Dimensions: 39x7x11mm
– Discharge Plug: 2 Prong Align Style (Fits Align Trex 100)
We have started the tests with a 1C discharge rate (0.16A) for the 1S 3.7V 160 mAh Turnigy Nano-tech 25-40C LiPo battery and we’ve managed to get 158 mAh as a maximum capacity, or almost what the battery is rated by the manufacturer. The 2 mAh shorter than the rating of 160 mAh should not be much of a problem if the battery manages to meet its other specifications, especially considering the very good price. Up to about 15C discharge rate or 2.4A constant current load the battery seems to handle very well, then a bit of a hiccup at 20C, but still managing to provide decent capacity. And at 25C discharge rate – 4.0A constant current load the battery is no longer able to provide stable power for more than a moment before it reaches the cutoff voltage. So again we are a bit short from the manufacturer rating of the battery claiming 25C constant discharge as we can clearly see that the real rating should be more like 20C constant and 25C burst discharge instead of 25-40C.
The performance of the 1S 3.7V 160 mAh Turnigy Nano-tech 25-40C LiPo Battery in our tests:
– 158 mAh at 0.16A load (1.0C)
– 142 mAh at 0.8A load (5.0C)
– 138 mAh at 1.6A load (10.0C)
– 130 mAh at 2.4A load (15.0C)
– 111 mAh at 3.2A load (20.0C)
– 9 mAh at 4.0A load (25.0C)
The 1S 3.7V 600 mAh Turnigy Nano-Tech Litthium Polymer batteries are being sold by one of the largest online remote control model and accessory stores called Hobby King and the brand Turnigy is their own. The batteries under that brand are considered to be of quite decent quality and a very good value, though we are going to check how good their perform and if they match the official specifications. The Turnigy only batteries are the lower end and the Turnigy Nano-tech labeled models are considered to be better as they offer higher discharge rates and the 600 mAh Turnigy Nano-Tech 1 cell LiPos are labeled with a discharge rates of 35-70C (constant 35C and peak 70C) which seem pretty high for that small battery. These batteries usually find their place in small scale helicopters, quadcopters or planes, so it is very important that you know what they are capable of in order not to crash your flying RC model because of battery not handling as well as it should be and you now aware of its actual capabilities. Below are the official specs of these Turnigy Nano-Tech LiPo batteries.
Official Battery Specifications:
– Capacity: 600mAh
– Voltage: 1S1P / 1 Cell / 3.7V
– Discharge: 35C Constant / 70C Burst
– Weight: 15.8g (including plug & case)
– Dimensions: 79x7x19mm
– Discharge Plug: JST
In order to test the capacity of the 1S 3.7V 600 mAh Turnigy Nano-Tech Litthium Polymer batteries we’ve started with a 1C (one time the capacity of the battery or with other words 0.6A) discharge rate and continued to increase it to 35C, the value that the battery should be able to handle at a constant discharge (that is 21A discharge). Our tests showed that the maximum useable capacity we’ve got at 1C discharge rate was 590 mAh which is only 10 milliamps shorter of the 600 mAh capacity by specifications which is not bad at all. However the official specs about the discharge rates this battery is capable of are far from the reality we’ve measured. At 35C discharge rate (21A) the battery is not able to handle properly even peaks, let alone provide a constant discharge. We can say that the battery is more like capable of peak discharge rates of 20C and constants discharge rate of 15C, though at 15C discharge rate (9A) we’ve measured a temperature of the battery of 59.5 degrees Celsius at the end of the discharge cycle. This temperature is at the edge of the safe zone for discharge of LiPo batteries, even though this temperature has been achieved with the battery standing on one place and if you are using it in a moving RC model the airflow will help in cooling it a bit and the actual temperature will most likely be lower.
The performance of the 1S 3.7V 600 mAh Turnigy Nano-Tech 35-70C LiPo Battery in our tests:
– 590 mAh at 0.6A load (1C)
– 545 mAh at 3.0A load (5C)
– 531 mAh at 6.0A load (10C)
– 506 mAh at 9.0A load (15C)
– 69 mAh at 12.0A load (20C)
– 18 mAh at 15.0A load (25C)
– 7 mAh at 18.0A load (30C)
– 5 mAh at 21.0A load (50C)
So the battery is not bad, however the actual specifications are a bit lower than the official ones. If you regard the battery as 1S 3.7V 590 mAh with a discharge rates of 15C-20C you might save yourself some trouble in finding out these more actual values the hard way.