Riporto uno scambio di email tra me ThunderPower.
Ho mandato mail anche a Electrifly, vediamo se rispondono.
Citazione:
Originally posted by erupter+03 settembre 2005--><div class='quotetop'>QUOTE(erupter @ 03 settembre 2005)</div><div class='quotemain'>Hallo.
I have bought a TP2100-3S dated 05-24-05.
I have cycled it 4 times now (flying it on a heli) and of the four charges none went above 1700mAh.
I have a GreatPlanes Triton charger which has a specific program for Lilo/LiPo batteries.
The median value of current for the four charges is around 1650mAh and is not increasing (the 1687mAh charge was the second one).
Do this battery need a lot of cycles to gain full functionality?
Or may it be a bad one?
Thank you [/b] |
Citazione:
Originally posted by ThunderPower@03 settembre 2005
1)Cycling battery at low rate may degrade Li-Poly pack (some cells may be discharge to below 3V)
2)Trinton can not fully charge to 100%
3)Please buy another brand li-poly and test exactly the same way to see if you can do any better.
Regards
TP |
Citazione:
Originally posted by erupter@03 settembre 2005
> 1)Cycling battery at low rate may degrade Li-Poly pack (some cells may be discharge to below 3V)
Low rate?
I only flown for 5 minutes my heli, then discharged with the triton at 0.5A and then charged at 1.6A.
The battery is 2 days old!!!
I bought it online and arrived friday! It's not months i've been using it!
And BTW your battery did not come with any balancing connector so there is no way of checking single cells without unpacking them and losing warranty hereafter.
> 2)Trinton can not fully charge to 100%
Can you please elaborate this?
And BTW maybe it does not charge to 100% but are you saying that a top of the line wordly praised charger is not able to charge more then 78% of this battery???
The delta here is 22% more then what you say is the threshold after what you dispose of the battery!
"Batteries that loose 20% of their capacity must be removed from service and disposed of properly."
That's what's written on one of yours PDFs and i bet you know it.
About my triton: it stops charging at 12.6V which is the recommended tension for a 3 cells pack.
If so then how could it be different?
Only way of charging more it so use a higher topping voltage, but that is not adviced anywhere not even on your site where it is said that a single cell should be charged at max 4.22V in the same PDF i quoted above.
So i can't see how another charger, topping at 12.6V as my Triton, should charge more then mine.
And anyway i want to stress that the difference from the label is 22% of the charge, not just some milliamps.
Thank you very much for your attention
|
<!--QuoteBegin-ThunderPower@03 settembre 2005
Trinton charger is a good consumer product, but no way calibrated close to any test equiment.
If you want to retest the pack, charge the battery with TP425 charger or any Schulze charger, check voltage with a Fluke meter to make sure the voltage is 4.2V, control room temperature between 76 to 80F.
Discharge with a CBA analyser, make sure total wires length are no more than 6 inches with good connector
Gen2 2100 is gurranty to deliver 90% to 105% of its rated capacity at 1C
We have use a higher standard for the new ProLite
ProLite 2100 is gurranty to deliver 95% to 105% of its rated capacity at 1C.
Regards,
TP[/quote]
Non mi chiedete la traduzione completa, ma il succo è che TP asserisce che il Triton non è calibrato per le Lipoly.
Pertanto in carica lascia fuori il 20% della capacità totale della batteria.
Questo sembra concordare con la mia esperienza, e con quella di un utente del forum Trextuning che ottiene gli stessi risultati con batteria e caricatore uguali ai miei.
A questo punto posso solo consigliare a tutti di cercare un'altro caricatore per le Lipo.
Il triton è ottimo per tutto il resto a quanto pare, ma non per le Lipo
