Re: You Can't Pour 3 Gallons From a 2 Gallon Jug...
200mA is what is recommended by the Duracell engineers. That's why it's printed on every battery. But I'm sure you know more than Duracell does about their batteries...:shakehead
PISSING OFF other CPF Members isn't my goal here. Rather, I consider myself a
CONDUIT / PARROT / TEACHER.
...
What TTA is trying to do helps out quite a bit. I saw a number of things I didn't notice before. -- And I've been reading CPF-batteries for over a year or so!
I think the way he's organizing the information is quite good. Almost exceptional, if I might say so myself.
Keep up the good work! Don't let any naysayers stop ya!
I've personally invested *MANY* (100? / 200? / MORE!) hours of my personal time reading the CPF 'Batteries Included' Archives.
I've READ.
I've ABSORBED.
I've EXPERIMENTED.
I've LEARNED!
And the *BEST*, IMHO, of what I've learned, I've shared in my Sig Line LINK. :twothumbs
IMHO, MANY of the *BEST* THEORETICAL DISCUSSIONS occurred *YEARS* ago, when this '
Rechargeable Cell Technology' was (relatively) *NEW* to most of them. Personally, I don't '
Give a Hoot' as to how long you've been a CPF Member, or how many posts you've accumulated. :tired:
The *MOST* important criteria are:
- WHAT KNOWLEDGE HAVE *YOU* OBTAINED?!? :thinking:
- WHAT KNOWLEDGE ARE YOU PASSING ON TO *OTHERS*?!? :thumbsup:
From my perspective, repeatedly
BEATING ON YOUR CHEST doesn't *MAGICALLY* grant you CREDIBILITY. TWO of CPF's "
ACKNOWLEDGED GURU's" have already DIPLOMATICALLY (*NOT* one of my strong points
) replied to this thread:
-
You can carry on as you are then -- but for the benefit of anyone else reading, lest they be confused: no AA Duraloop has a capacity greater than about 2050 mAh, and no AA size NiMH cell in the world has a capacity much greater than 2700 mAh.
-
...
According to the information on the Duracell website, they actually recommend many different charge rates and also discuss the termination methods used with each charge rate.
Do you happen to know what method and measurement the BC-900 uses for charge termination? Using that method of termination, what charge rate does Duracell actually recommend?
Their actual recommended charge termination is based on temperature. It is too bad that they don't offer any chargers that use this for primary charge termination...
Code:
TECHNICAL BULLETIN
Charging Sealed Ni-MH Batteries
Charging Methods
Recommended Charge Procedure:
* For fast charging and optimum performance, Duracell recommends a three-step procedure:
1. Charge at 1C rate, terminated by using dT/dt = 1°C (1.8°F)/minute
2. Apply a C/10 top-up charge, terminated by a timer after 1/2 hour charge (optional, not required)
3. Apply a maintenance charge of indefinite duration at C/300 rate
* The recommended charge procedure should be used with a backup temperature cutoff of 60°C (140°F).
Alternate Charge Procedures Include:
* Low-rate charge (~12 hours): Charge at C/10 with a time-limited charge termination.
* Quick charge (~4 hours): Charge at C/3 with a -V = 10 mV/cell.
* Fast charge (~1 hour): Charge at C/2 to 1C rate with either -V, or T termination.
* Trickle charge: Constant charge at C/300 rate to maintain full charge.
Reference: Silverfox's Duracell LINK (from above)
Along with a CPF member:
Duracell has no motivation to keep your rechargeable batteries healthy. They'd rather see you destroy them quickly so that you go back to buying the alkaline kind.
Now, back to you:
Actually, they do. If these batteries fail quickly, then they get a bad reputation. Remember the Energizer 2500s that were quickly replaced with 2450's - and now everybody's afraid to even try the 2450s and Energizer's name is dirt.
Where is Energizer's name
DIRT outside of the knowledgeable members that visit this forum?
Listen man, FROM THE HEART, I'm *NOT* here to give you grief / attack you / etc...
Take a DEEP BREATH, calm down, and run "
THE EXPERIMENT". Then, BE A MAN, and post your results.
BTW, *MY* results have already been posted in VARIOUS threads related to this same topic.
P.S. Regarding my "
more than the casual member" usage of the various FORMATTING PARAMETERS:
Well... ...Why build something into the software if there is no need/demand for it and it never gets used? Crazy! Just crazy!
lovecpf
:thanks:
LISTEN to your 'normal text' as if the words were spoken by the DIGITAL BOX that Stephen Hawkins *HAS* TO USE - MONOTONE! Then, listen to how people ACTUALLY speak to one another - louder, softer, pitch higher, pitch lower, etc...
THAT'S what you gain from utilizing the FORMAT PARAMETERS!
- PLAIN TEXT - ROBOT sounding.
.
- FORMATTED TEXT - HUMAN sounding (although it DOES look 'different')