Brand new 3rd generation Sanyo eneloop AA batteries with improved specification. 1800 recharge cycles, 70% capacity retained for 5 years, 1900mAh minimum capacity. Interesting result when discharged to 0.9v fresh out of the pack - watch the video for full details.
By Julian
Youtuber, shed dweller, solar charge controller aficionado
Please recharge and do test again and use 100 ma rate.
As of 1900mAh these Eneloops are best rechargeable batteries on the market
Hi Julian, any idea why my little desk top fan that runs on 2AA batteries will not operate with 2 fully charged AA? Thanks John.. 🙂
Please help me understand. I'm looking for new batteries for my canon flashes and have been reading some tests. There seems to be a lot of good talking about these eneloop AA's but they ar only 1900mah. I've only used 2700mah up to now. GP and Powerbase. Will these 1900mah compare?
Love the batteries and the CHARGER. I have the same set-up. I have to laugh when I see the cheap Engergizer rechargeable that come with their own wall charger. It is a shame this batteries aren't more redly available. I have to get them from Amazon.com or eBay… not in stores in the USA and NO ONE I know has ever heard of them. Too bad. They are awesome.
You can't determine the capacity of a battery simply by discharging it straight out of the box. You can't assume the batteries received a full charge at the factory, and of course, even low-self-discharge cells will lose SOME energy after half a year on the shelf. To test the cells properly, you need to do a full charge cycle and THEN discharge them to find out their capacity.
I just got 8 of these from Korea, every battery measured 1.323 volt dc
The cell resistance of NiMh batteires is far too high. So beeing said, that even with (for me a very low current) 300 mA they get quite warm…
I'm glad that today's product get LiIon batteires.The much higher cell voltage solves the problem with the high cell resistance, since we can draw much lower currents out of the cells while getting the same amount of energy out of them.
In low current devices such as a notebook mouse (MS Wireless Mobile Mouse 3500 for example) NiMh batteries are still good. But for digital cameras or cam corders, they are simply bullshit… Too low voltage, too high current, hot batteries, short life time…
That does make sense, that the batteries need a few charge/discharge cycles before they reach full carrying capacity. But it makes a bit of a nonsense of the "pre-charged" claim. Really, Sanyo should do that for you; cycle them a few times, then give them a pre-charge that would yield the full 2000mAh. That would kill the alkaline industry once and for all.
I'll plan on doing a test when I get some. May be a year or two as the older batts just last & last.
One thing I wonder about is the *breaking in* of the batteries. I've read somewhere that for batteries to *form* properly that they should be *used a few times* before doing a series of FULL charge-discharge like we would do to *evaluate* the battery.
Any thoughts on this? Run it through the flash a few days before full C-D eval?
Recharge and discharge a few times and do the video again
I think in subsequent discharges the batteries shouldn't get as warm as in the 1st one. That's because if they are stored for a long time, their internal resistance rises, which means more losses on discharge, hence more warmth. This happened to me with other LSD cells (non-Eneloop) which were stored for a year and then went dead pretty quickly in a digital camera, but after a partial discharge and recharge, they work much better now.
They should pull Down to 0.90 : You have to watch when there getting close to the 0.9 area because as soon as they get to 0.90 the Charger with kick the Done indicator on and you won't know for sure if they hit 0.90
Next time Discharge @ 100mA you'll have better Results and they won't have get as Warm.. Charge @ 900mA mine done well at this setting My eneloops are the 1500 recharge Version it's got the picture of the Earth on the Card.. by the Way were did you get your eneloop's at..
I knew from a while back that batteries are best stored at a medium charge. I am also subscribed to a channel called 'LinusTechTips' – the guy on there really likes these batteries. He seems to know they're charged to 6-%-70% I believe
That certainly seems to be the case – did you read that somewhere?