ben_r_ wrote in post #4884986
Yes, numbers 1 and 2 from your post are correct. Now what I was trying to say was that the charger only lets you set the charge (or a discharge value) in 100mA increments and if you needed 1350mA you would have to round to 1300mA or 1400mA or for .8C 2100mA or 2200mA. Thats all I meant there. Sorry if it came out confusing.
Now, if it were me and I was out shooting and used up say only half the capacity of a set of four batteries and I cam home and wanted to make sure they were topped off for the next day, I would first run a discharge cycle on them and then run the charge cycle on them. "Topping off" or charging a half charged battery is exactly what promotes problems with shaping. Reshaping of a battery is the very thing we are trying to keep from happening with a fancy smart charger like the C9000. When you repeatedly recharge a not fully discharged nimh battery eventually it will not longer reach the maximum capacity it once could. Then we start all over and have to run a break in cycle on the battery in the hopes that it can be revived. So yea you might be okay topping off the batteries now and again, but I wouldnt make a habit of operating them that way and personally I am super anal about my batteries (hence why I bought a $70 charger) and I would run a discharge cycle first on them and then a charge cycle. Or you can do what I did and just buy LOTS of eneloops and carry more with you that way you can finish using up the four you had half drained and always have spares
I have read on another forum where a guy was saying (according to Maha Support) that you should always round up. In other words, with the example of needing 1350mA you stated use 1300mA or 1400mA. I should really use 1400mA. Correct me if I'm wrong. I wish I can find that link again about it. Back when I read it, I really didn't understand it.
Anyway, that makes sense regarding discharging them first before charging so that it doesn't reshape.
I don't want to be too anal about this but the eneloop charger that came with this, I can't even fathom what it does, in comparison to the Maha. With all this "work" to maximize the capabilities of the Maha charger, are there any significant loss?
I mean, if I used the eneloop charger for 10 years and you use the maha charger for 10 years, would we be replacing the battery at the same time? The difference would be that I wouldn't really be worrying about all the "work" in working a Maha charger? Don't get me wrong, i love the charger but dang, I didn't know there was an entire science to it.
On a side note: This analogy reminds me of overclocking computers. Yes, overclocking degrades the life of the computer. Instead of it lasting 5 years, it will last only 3 years but if you think about it, reaping the benefits of overclocking, we all know that in 3 years time, you'd be force to upgrade the computer anyway due to technology advances. So it makes sense (if you know how) to overclock.
I guess I have to get used to the different modes of the charger. I'm still trying to get grips on Charge mode, Refresh & Analyze Mode, Discharge Mode and Cycle Mode.
Break-in, I pretty much understand. What is the purpose of Cycle mode?
I am presuming if you need to "top off" a battery, you go through a refresh & analyze mode? It recharges then discharges and the recharges.
Also discharge rate and charge rate? I should be setting this the same? For example, for a 2000maH battery with a .8 charge rate = 1600mA, the discharge rate should be 1600mA as well?
I haven't done a discharge yet but it does say I can set a discharge rate as well.
Sorry for all these questions it has been helpful! Thanks again!