Turnigy blue 25c vs 40c??

[p4ddy]

Sounds like a no brainer but are the 40c loads better than 25c? Does anyone know if there is a real noticeable difference in performance. I did try a 30c once but it only lasted a few flights but i've never had any problems with the 25c. Also do the 40c make the logo 500 very nose heavy? I guess everyone will say just get the 40c lol & i do want to try them

[Grumpy]

I'm using several of the 40c ones and they do well, but 40c is a bit of an exaggerated rating. For the price I'm not complaining at all, and Turnigy aren't the only ones to hype up their c ratings.

I've not tried the 25c ones but if the 'hyping up' is consistent they are probably more like 15c

[scallybert]

What are your flight-times like ?

As a really rough rule of thumb dividing 60 minutes by your flight time gives your average discharge 'C'.

eg a 6 minute flight is 10C.

If you're well below a sceptical interpretation of their C rating, you have to suspect you'll see no benefit.

[p4ddy]

25C just comes out at 11.5C shiiiiiiit 5min 20sec

I'm not convinced this works?? seems a bit iffy.

[Grumpy]

That's true for average c rating, and assuming you fly until the battery is totally depleted. Most people leave 20% in the battery so you would need to divide the answer by 0.8... so 10C would become 12.5C


The problem with that method is that going by the results no one, not even the very hardest flyers, would need any more than 20-25C... and we all know that's just not realistic.

[Varelco]

It's a heli not a light bulb, the discharge current isn't consistent, as soon as you load the motor you will have a varying degree of current bursts, this is where your C rating comes into play, higher C packs are 'stronger' and you will see less voltage sag and stress on the pack, this will have a knock on effect in how the heli reacts, I.e bogging.

[p4ddy]

It's a heli not a light bulb, the discharge current isn't consistent, as soon as you load the motor you will have a varying degree of current bursts, this is where your C rating comes into play, higher C packs are 'stronger' and you will see less voltage sag and stress on the pack, this will have a knock on effect in how the heli reacts, I.e bogging.

Yea but it's the performance between those two packs specifically as other brands have a more pronounced performance increase/sustainability than others

[milly0812]

Just get the 40c :P

[p4ddy]

Just get the 40c :P

Then fly & kick sand over the discarded flybar. I just looked at Gens Ace £80 & Opti's £100 so it's back to Turnigy again lol

[Toolman]

After many years of buying lipo's of different brands I have come up with a few simple rules:-

1. All Lipo battery suppliers lie about the C ratings, no pack is more than around 35C.
2. Any brand can quickly fail what ever the cost, though a reputable one will be easier to get a replacement from.
3. In a given brand/range the higher C rated pack will be heavier, if it isn't - well see Rule1!
4. Don't stick to any particular brand or range as they maybe good one day & not another.
5. Every buy you are taking a gamble, buy cheap and you have more chances to get a good one.
6. Don't believe anything anyone tells you about Lipo's!

Tim.

[waveydavey]

All I can say paddy as you mentioned Gens Ace is that they were the only packs that came close to their true C rating and that was 25C. None of the others were close, checked on a Wayne Giles without letting pack sit at ambient temperature. So not scientific but quite close

[KevDavies]

ive got a big case full of Turnigy blues, love em. If you can afford the little extra get the 40c's cos youll only wish youd got them if u get the 25's. Mine are all 30c's and I get over 100 flights before they start to give up on me.

Id love a big case full of Optis, but unless I win the lottery or sell my soul to the devil, i cant afford em

[Mike Sanders]

Don't believe anything anyone tells you about Lipo's!

I believe that!

[choppaholic]

After many years of buying lipo's of different brands I have come up with a few simple rules:-

1. All Lipo battery suppliers lie about the C ratings, no pack is more than around 35C.
2. Any brand can quickly fail what ever the cost, though a reputable one will be easier to get a replacement from.
3. In a given brand/range the higher C rated pack will be heavier, if it isn't - well see Rule1!
4. Don't stick to any particular brand or range as they maybe good one day & not another.
5. Every buy you are taking a gamble, buy cheap and you have more chances to get a good one.
6. Don't believe anything anyone tells you about Lipo's!

Tim.

7. never buy a second hand lipo, they have all surprisingly done less than 10-20 cycles on them as measured by the lipodometer

I have a 20c and 40c turnigy 6s blue the 40 has more power for sure on same heli and both batts were bought at the same time, I did buy 30c once they balloned within a couple of flights and never developed good power after, they power my nitro starter every now and then now

both 20 and40 are now two years old and still power the same 600 the 40 are now significantly better in power delivery have done 100 plus flights and no puffing on either

[electricsceadu]

i've got 2x 25c and 4x 40c 6s turhigy blues that i use in my plank and rappy 550e
the 40c have just a little more edge in the heli and have a little more left in them on landing
i did reset the timer as the first time i used the 25c ones in the heli the lipo when down to 15%
in the plank i don't notice any difference apart from the 40c one have more left in them at the end of the flight

with reference to the flybar the demons will get their own back