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Archive for the ‘Li-Po/Ion/Fe Batteries’ Category
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)
1S 3.7V 300 mAh Dual Sky 25C LiPo Battery Tests
3, Dec 2013
The 1S 3.7V 300 mAh Dual Sky 25C LiPo batteries are designed for use with small scale RC helicopters such as Blade mCPX and are also compatible with other similar models such as WLtoys v922 or Turnigy FBL100 and others. These batteries are intended to be used as a replacement of the original batteries and supposedly they should be providing higher capacity for longer flight time as well as higher discharge rate for maximum performance during flight with the RC model, but can they deliver on what they claim…
Official Battery Specifications:
– Capacity: 300 mAh
– Voltage: 3.7V
– Energy: 1.11Wh
– Weight: 8 grams
– Dimensions (L x W x T): 45x20x7 mm
– Wiring: Mini JST
– Max Cont. Discharge: 25C
– Max Charge Rate: 2C
– Max Burst Discharge: 50C
We have started the tests with a 1C discharge rate (0.3A) for the 1S 3.7V 300 mAh Dual Sky 25C LiPo battery and we’ve managed to get just 269 mAh as a maximum capacity. This means that even at 1C discharge rate these batteries are not able to deliver their rated capacity of 300 mAh and that is not a good start at all. Furthermore, increasing the constant current load we saw that the batteries manage to handle well up to 10C discharge rate as a maximum and they fail at 15C, so we did not continue increasing the load further as it was pointless. Dual Sky rates these as 25C constant and 50C burst discharge rate, but they should be more like 10C constant and 15C burst and more like 250 mAh actual capacity. In short, we are disappointed by the performance that these batteries have shown in our tests.
The performance of the 1S 3.7V 300 mAh Dual Sky 25C LiPo battery in our tests:
– 269 mAh at 0.3A load (1C)
– 248 mAh at 1.5A load (5C)
– 223 mAh at 3.0A load (10C)
– 14 mAh at 4.5A load (15C)
1S 3.7V 200 mAh E-flite 30C LiPo Battery Tests
3, Dec 2013
The 1S 3.7V 200 mAh E-flite 30C LiPo batteries are designed for use with small scale RC helicopters such as Blade mCPX and are the original batteries made by E-fliete for that particular model, though they are also compatible with other similar models such as WLtoys v922 or Turnigy FBL100 and others. And while these batteries are quite Ok for stock batteries for these RC helicopters the question is if they are able to meet their specifications and that is exactly what we are going to check now.
Official Battery Specifications:
– Capacity: 200 mAh
– Voltage: 1S1P / 1 Cell / 3.7V
– Discharge: 30C Constant
– Discharge Plug: E-Flight Ultra Micro
We have started the tests with a 1C discharge rate (0.2A) for the 1S 3.7V 200 mAh E-flite 30C LiPo battery and we’ve managed to get 214 mAh as a maximum capacity, or a bit over the manufacturer rating for this battery. Increasing the constant current load further to 5C, 10C and even 15C and the battery still manages to provide slightly more capacity than it is rated at. At 20C discharge it is still handing quite well, at 25C is still manages to offer decent capacity though going on the low side and at 30C, the ratting that for constant current discharge that it can handle it fails. So the real rating should be more like 20C-25C constant current and not 30C, nevertheless the mCPx helicopter still works quite well it that battery as it probably does not need 6A load. You might consider going for alternative batteries with slightly higher capacity and a bit lower constant current discharge rating in order to get more flight time.
The performance of the 1S 3.7V 200 mAh E-flite 30C LiPo battery in our tests:
– 214 mAh at 0.2A load (1C)
– 206 mAh at 1.0A load (5C)
– 203 mAh at 2.0A load (10C)
– 201 mAh at 3.0A load (15C)
– 187 mAh at 4.0A load (20C)
– 120 mAh at 5.0A load (25C)
– 7 mAh at 6.0A load (30C)