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Enlightened
I haven't looked lately but if you have one up there the H.H. Gregg stores around here were selling the Eneloop 4xAA packs for like $7 or $7.50.
Eneloops vs energizer rechargeable?
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fishinfool
Enlightened
Well I'm almost at the end of a break-in mode of 4 of these new energizer 2300 nimh's, so I think I'll experiment with these and check their capacity with my ZTS MBT-1 battery tester once a week for several weeks. I'll keep you posted.
Lifetime? Well I started a spreadsheet for all my eneloop, energizer, and duracell nimh rechargeables. I've got each one numbered and we'll just have to wait and see how they all compare over time. So far I'm only keeping track of mAh and the difference in mAh compared to the last charge, R/A or break-in. Should I keep track of the voltage too? It seems like the voltages are the same most of the time and really don't change much.
InHisName
Enlightened
Yes and also the impedance of the cells increases and messes up the ability to deliver higher currents or even medium currents. Eventually only low currents give nearly the same capacity. The C9000 shows a brief number (1.68) on my AAA Duraloops right after starting to charge. Then the voltage shows 1.24 or what ever is normal at begining of charge. When it increases over 2.08 or so THEN you will see HIGH and it refuses to charge the cell. Need a lower pulsed current charger than the 2 amps.
To fishinfool, if you have a c9000, record the impedance test voltage for each cell and note changes over the long time. Keeping track of this will give you early warning of when a battery looses capacity at high current drains.
Amazon has Enloops with free shipping. Not sure how their prices compare to others. $20.07 for 8 AA, $10.84 for 4 AA, $31.20 for a Power Pack which includes 8 AA, 2 AAA, 4 D and 4 C adapters, and a charger. Enloops
The materials that I saw on the 2300mah show that they don't retain charge as well as regular LSD's (I'm not sure what brand they used to benchmark) but the difference wasn't that huge (~5-10%) in comparison to the older 2450mah (which was at like <50% retained on the same graph).
Edit: I looked at the graphs again and at 6 months the new Energizer 2300mahs were estimated to be at 83% capacity and at 12 months 80%.
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fishinfool
Enlightened
Yes and also the impedance of the cells increases and messes up the ability to deliver higher currents or even medium currents. Eventually only low currents give nearly the same capacity. The C9000 shows a brief number (1.68) on my AAA Duraloops right after starting to charge. Then the voltage shows 1.24 or what ever is normal at begining of charge. When it increases over 2.08 or so THEN you will see HIGH and it refuses to charge the cell. Need a lower pulsed current charger than the 2 amps.
To fishinfool, if you have a c9000, record the impedance test voltage for each cell and note changes over the long time. Keeping track of this will give you early warning of when a battery looses capacity at high current drains.
How do I go about doing that? Do I need a dmm? Sorry but I still have A LOT to learn.
Russel
Enlightened
fishinfool
Enlightened
Thanks Russ!
TakeTheActive
Enlightened
fishinfool
Enlightened
I am now keeping track of the Impedance Test voltage along with the end of charge mah. I am doing a break-in of some energizer aaa 850's and the impedance test voltages are 1.56v, 1.63v, 1.58v, and 1.62v. So according to your post they are:
~1.60VDC: Healthy, vibrant, probably new; provides GT 90% Capacity.
Thanks TakeTheActive!
bstrickler
Enlightened
I have a pair of 4+ year old white Duracells that are still going. Still run for about 45-50 minutes in my AA^2 Quark, on max (about 2 amp draw). The other 4 I had were goners, unfortunately (maybe 30 seconds on high, before the light went out, and wouldn't take a charge after that).
Right now, I use the white Duracells, 2450 Energizers, and some 1600 mah green batteries (can't remember their name off the top of my head. But they're about as old as the Duracells, maybe older).
Don't buy the Energizer charger/battery combo! Those are POS chargers and cells. They're chinese cells, which dent VERY easily. My Quark tailspring dented the bottom of the cells. And that spring isn't as strong as some other AA lights I have. Plus, the charger sucks. Overcharges the batteries (1.65-1.7v), and causes em to get hot.
The 2450's are Japanese cells, and are much higher quality than their Chinese counterparts (think titanium vs aluminum in strength, and you have the quality comparison).
~Brian
Right now, I use the white Duracells, 2450 Energizers, and some 1600 mah green batteries (can't remember their name off the top of my head. But they're about as old as the Duracells, maybe older).
Don't buy the Energizer charger/battery combo! Those are POS chargers and cells. They're chinese cells, which dent VERY easily. My Quark tailspring dented the bottom of the cells. And that spring isn't as strong as some other AA lights I have. Plus, the charger sucks. Overcharges the batteries (1.65-1.7v), and causes em to get hot.
The 2450's are Japanese cells, and are much higher quality than their Chinese counterparts (think titanium vs aluminum in strength, and you have the quality comparison).
~Brian
I just bought some Energizer Recharge AA cells which I have not seen before. They are 2300mah, made in Japan, and they claim to hold a charge better than their 2450mah cells over the course of a year. I bought some other Energizer 2300mah NIMH cells several months back that had similar claims, and they work great. They both were not labelled "precharged" or "LSD", but they definitely do not discharge quickly.
Light Sabre
Enlightened
I have 8 of the New Energizer 2300 mAh rechargeables. On my BC-900 they all came in right on the money mAh wise, just like the Duraloops do. They are made in Japan, but obviously they are not LSD. Not much difference in mAh between 2000 to 2100 Duraloops and the 2300 Energizers, so the Duraloops are the much better deal in the long run.
fishinfool
Enlightened
I also bought a few of these new 2300's and so far they are great. I still have some older 2450's that I still use in remote controls plus I found a couple older 2200's that still hold a charge. All of them I noticed are made in Japan but I don't see anything that says Sanyo on any of them.
fishinfool
Enlightened
Here are the break-in numbers on the 8 energizer 2300's I bought 2-3 weeks ago:
2272, 2270, 2238, 2276, 2295, 2276, 2260, and 2267.
We'll see how they do after a few months of use.
2272, 2270, 2238, 2276, 2295, 2276, 2260, and 2267.
We'll see how they do after a few months of use.
the energizer 2300s generally are good cells, I got about 20 of them about 5 years ago for about $6 a 4 pack on clearance when the 2500s came out. I recommend them as daily use or even monthly use cells if you can get them cheaper than duraloops on sale as they tend to discharge in about 3-6 months and have over half a charge left a month after charging which for most times is very useful. In a power outage I had a dozen of them I cycled through my car charger for 4 days powering a CCFL light and lantern here, they don't mind being charged fast either... 1-2 hour chargers are no problem.
Light Sabre
Enlightened
I got similar readings on my 8.
fishinfool
Enlightened
I've been buying different nimh brands just to see how they compare to my eneloops over time. So far I have Powerex 2700's, Energizer 2450's, 2300's, 2200's, Duracell 2450's, 2000 regulars, 2000 duraloops, Rayovac platinum 2100's, and Diehard (Sears) 2000's. I've been keeping track of everything and anything about these batteries so we will see how they do over time.
Man, I think I need a life. :thinking:
Man, I think I need a life. :thinking:
07accordEX
Newly Enlightened
Just curious which you found to be best? I am looking into the Ansmann 2850's
