Went flying this Saturday and I have to admit the Protos just wasn’t flying as well as it used to be. It seemed down on power and as I had begun to suspect the batteries are beginning to get tired.
In fact so bad was the the situation with one of them (2450Mah) that one of the cells was showing 2.76v and wouldn’t charge and I have had to dispose of it. The other one I had the (2650mAh) charged but one of the cells was left at 4.14v.
This made me think, have they been good value should I buy again? I have checked Hobbyking for when I brought them and it goes like this:
10th Jan 2010 |
Turnigy 6S 30C 2450mAh |
$50.72/£32.46 GBP (inc del) |
24th Jan 2010 |
Turnigy 6S 30C 2650mAh |
$61.79/£39.55 GBP (inc del) |
I fly mostly Saturday and Sundays so based on that assumption since the beginning of Feb there has been 33 weekends (Its now 19th September). Each Saturday I normally charge and discharge it twice. Therefore I have had 132 flights per battery. This works out at:
Turnigy 6S 30C 2450mAh |
$0.38/£0.24 GBP per flight. |
Turnigy 6S 30C 2650mAh |
$0.46/£0.29 GBP per flight. |
I think this is pretty good, especially when you consider I have actually had more flights than this as I have been on holiday an used them 3/4 times a day for 3 or more days.
It is also worth noting that except for the one that the cell died the other battery is fine for learning etc.. I am trying to learn 3D so I give my batteries a pretty tough time. I always discharge to 80% of capacity and then charge at 1C.
If your not as hard as me on the batteries and fly in a sport style then they will probably last a lot longer. Overall though a great value battery that is good value for money and performance.