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Old 05-15-2013, 10:34 AM #1
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fran82 fran82 is offline
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Default Review and test - Genuine Sanyo Eneloop XX 2500mAh LSD batteries

Hi LPF!!

I have done some tests of capacity and LSD on a pack of 4 LSD batteries, this time Genuine Eneloop XX 2500mAh.

I already had the "old" "normal" white Eneloop of 1900mAh, so I tought it would be great to compare them side by side regarding capacity and LSD...

Ok, letīs start with the XX.

They are these Genuine SANYO Eneloop XX 2500mAh Ni-MH Rechargeable AA Low Self Discharge Batteries - Black (4-Pack) - Free Shipping - DealExtreme

First, they are a 100% genuine product from Sanyo. They claim to hold 75% of their charge after 1 year, and a maximun of 500 cycles. They are good even at -20šC.

The packaging is nice too:



The package shows a sanyo hologram sticker proving itīs autenticity



They look very nice and well built They have 4 venting holes in the positive end





Here compared to BTone 2100mAh:



Also a manufacture date is written in the side of the label of each battery.... (mine are from June 2012)

They came charged, no need to charge before using them for first time...


TEST RESULTS, ENELOOP XX 2500mAh


Manufactured on June 2012. Tested on March 2013 (9 months since the factory charge)
.

Voltages (no-load) from factory

Cell 1 – 1,289v
Cell 2 – 1,289v
Cell 3 – 1,289v
Cell 4 – 1,289v

First discharge (charged from factory), down to 0.9volt @ 0.5A discharge

Cell 1 – 1039 mAh
Cell 2 – 1009 mAh
Cell 3 – 983 mAh
Cell 4 – 1010 mAh

(I was especting these low readouts… the XX eneloop are not as good as the white eneloop in LSD and voltage sag)

Now second charge/discharge, charged 0.5A and discharged again, down to 0.9volt 0.5A discharge (as always)

Measured capacity

Cell 1 – 2339 mAh
Cell 2 – 2335 mAh
Cell 3 – 2328 mAh
Cell 4 – 2330 mAh


Now I will try to do 2 cycles more, but I think I will not get much better improvement…
Then, 6 months later, the first LSD test from 2x of them, and 12 months LSD test from the other 2x cells.


.

Now for comparison with the old white Eneloop

TEST RESULTS, ENELOOP XX 1900mAh


Manufactured on June 2011, tested on June 2012

No load voltages were:

1, 2, 3, 4, 5 and 6 months (1.355v, 1.336v, 1.331v, 1.327v, 1.325v, 1.321v)

Measured capacity

Cell 1 = 1785mAh
Cell 2 = 1794mAh

Remaining after six months

Cell 1 = 1582mAh
Cell 2 = 1590mAh

So it has about 88.6% of itīs capacity still available after 6 months.


The measurements were done with the Imax B6 in discharge mode @0.5A



Last edited by fran82; 05-15-2013 at 10:54 AM.
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