Eneloop vs Rayovac Hybrids AA's

[bp044]

Which of these cells rate higher regardless of initial cost ? Which is the best dollar value ?

 

[thekobk]

Royovac's seem to have a slight edge on initial capacity but the eneloop's can hold voltage better under load and seem to have a better shelf life.

 

[johnny13oi]

The hybrids are cheaper and hold their charge slightly less in percentage but I think it still holds more charge overall due to its higher capacity. I would say the hybrids have the best dollar value.

 

[SilverFox]

Hello Bp,

You may find this post informative.

Tom

 

[jayflash]

The depressed voltage of the Hybrid cells was something I posted about last month. After several charge cycles the voltage under load improved to a normal NiMH level.

 

[SilverFox]

Hello Jayflash,

The cells I used for testing only have 10 cycles on them. How many cycles did you have to go through to see voltage improvements?

Tom

 

[VidPro]

Hello Bp,

You may find this post informative.

Tom

Darn, no REAL capacity difference with the marked higher capacity ray-o-vacs :-( shoulda known, dang cheaters

 

[wasBlinded]

Darn, no REAL capacity difference with the marked higher capacity ray-o-vacs :-( shoulda known, dang cheaters

My testing indicates that the 2100 mAh Ray-O-Vac Hybrids do have that 100 mAh advantage over the 2000 mAh Eneloops:
http://candlepowerforums.com/vb/showthread.php?t=151183

However, it may well be that the actual Watt-hours from the cells don't exactly follow the amp-hour capacity - I don't have that test capability.

 

[SilverFox]

Hello WasBlinded,

Our tests were run at different current draws, and my initial capacity is from a normal charge, not a forming charge.

This reminds me, I need to check the C9000 to see how closely it comes to the CBA results.

Tom

 

[VidPro]

My testing indicates that the 2100 mAh Ray-O-Vac Hybrids do have that 100 mAh advantage over the 2000 mAh Eneloops:
http://candlepowerforums.com/vb/showthread.php?t=151183

However, it may well be that the actual Watt-hours from the cells don't exactly follow the amp-hour capacity - I don't have that test capability.

ok well my normal use of things like this would be at 500ma to 1000ma max, so how they work at 5AMP loads , is not a specific concern.

1928 1925 2004 2021
^ but this?? heck that is a 2000ma battery if i ever seen one, i still say Cheeters

why there was a day, way back when numbers werent marketing, that almost all the batteries showed MORE than they stated, but just a bit, even at "normal" discharge patterns.

 

[Handlobraesing]

These are all concerning bench test cells that's rarely used. My eneloop used to be able to be charged from any state of charge on my Duracell 30 minute charger, but lately, the charger rejects the cells if the cell has been drained partially very slowly.

I tried to charge a set of four and two of them was rejected. The cell was drained to half the mAh capacity over three months or so in a flashlight I don't use much. Discharge test showed about 1,000mAh remaining and after the full discharge, Duracell charger was able to recharge it.

 

[wasBlinded]

1928 1925 2004 2021
^ but this?? heck that is a 2000ma battery if i ever seen one, i still say Cheeters

The first two figures are the two 2000 mAh Eneloops, and the second two are the 2100 mAh Hybrids.

 

[WildChild]

These are all concerning bench test cells that's rarely used. My eneloop used to be able to be charged from any state of charge on my Duracell 30 minute charger, but lately, the charger rejects the cells if the cell has been drained partially very slowly.

I tried to charge a set of four and two of them was rejected. The cell was drained to half the mAh capacity over three months or so in a flashlight I don't use much. Discharge test showed about 1,000mAh remaining and after the full discharge, Duracell charger was able to recharge it.

This is why slow chargers still exist! I'm trying to drain a set of Eneloop in a cordless mouse with expected batteries life of 1 year! I'll see with my Sanyo 1h/2h charger what happens...