Woots
Newly Enlightened
- Joined
- Oct 23, 2012
- Messages
- 6
Powerex Maha C9000 Charger: Question about extremely concerning "Break-In" numbers.
Hello everyone. I have been looking around google for the answer to this, but I am not having any luck getting the exact info I need. I figured I would just ask here and see if you guys know what's going on.
I just bought a Maha C9000 and a new pack of Eneloop Pro AA (rated at 2500 mAh)
I did a full discharge first (just to be safe at a setting of 800 which is about 1/3 of total). That all went perfect as expected.
I then started the break-in procedure. The Maha C9000 defaults to 2500 mAh (which is exactly the rating of my cells) so I just hit enter and set up the program.
Everything was going fine last night until this morning when I looked at the readout on all 4 batteries and the number said they received 3950 mAh (and it was still going up)? I kinda freaked. I immediately touched the batteries to make sure they are not about to catch fire. They felt a lil bit warm, but not hot.
This was only the first charge in the break-in procedure, before the discharge and 2nd and final recharge. Does that readout indicate these batteries took 4k mA when they are only rated for 2500 mA? Did I just ruin my cells? Did I make a mistake by setting it to 2500 mAh at break-in...should I have set it to 1200 mAh (about 50%) like you do for charge? Is my Maha 9000 defective?
I just very well may not understand the readout figures and I'm getting alarmed over nothing (Which is what I am hoping for). However, at this point I am ruling nothing out. I assumed I would wake up and see 2500 mAh as the cut off point and then it should stop, rest and begin the discharge cycle. I didn't expect to see it blow way past the 2500 mark.
Since it was not burning hot, I just kept a close eye on it and it is now on its discharge cycle. I have no clue though the danger I am running here (especially during the final recharge cycle tonight). I fear about starting a fire with this thing while I sleep tonight. If anyone can let me know that this is normal it would put my mind at ease. Right now I am tempted to abort the mission for safety concerns.
Thanks in advance for any and all assistance.
Hello everyone. I have been looking around google for the answer to this, but I am not having any luck getting the exact info I need. I figured I would just ask here and see if you guys know what's going on.
I just bought a Maha C9000 and a new pack of Eneloop Pro AA (rated at 2500 mAh)
I did a full discharge first (just to be safe at a setting of 800 which is about 1/3 of total). That all went perfect as expected.
I then started the break-in procedure. The Maha C9000 defaults to 2500 mAh (which is exactly the rating of my cells) so I just hit enter and set up the program.
Everything was going fine last night until this morning when I looked at the readout on all 4 batteries and the number said they received 3950 mAh (and it was still going up)? I kinda freaked. I immediately touched the batteries to make sure they are not about to catch fire. They felt a lil bit warm, but not hot.
This was only the first charge in the break-in procedure, before the discharge and 2nd and final recharge. Does that readout indicate these batteries took 4k mA when they are only rated for 2500 mA? Did I just ruin my cells? Did I make a mistake by setting it to 2500 mAh at break-in...should I have set it to 1200 mAh (about 50%) like you do for charge? Is my Maha 9000 defective?
I just very well may not understand the readout figures and I'm getting alarmed over nothing (Which is what I am hoping for). However, at this point I am ruling nothing out. I assumed I would wake up and see 2500 mAh as the cut off point and then it should stop, rest and begin the discharge cycle. I didn't expect to see it blow way past the 2500 mark.
Since it was not burning hot, I just kept a close eye on it and it is now on its discharge cycle. I have no clue though the danger I am running here (especially during the final recharge cycle tonight). I fear about starting a fire with this thing while I sleep tonight. If anyone can let me know that this is normal it would put my mind at ease. Right now I am tempted to abort the mission for safety concerns.
Thanks in advance for any and all assistance.
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