Sanyo Eneloop vs Sanyo 2500maH NiMH

[tanjk]

Folks, I was feeling bored so I did a simple test of the above 2 sets of batteries.

The 4x Sanyo 2500maH came bundled with a Sanyo charger I bought a few months back. It has less than 10 cycles to it.

The 4x Sanyo Eneloop is fresh out of the pack. I bought it a couple of weeks ago but haven't really use all of them in the field.

Out of curiousity, I wanted to see the recharge time on my Canon 420EX using both types of batteries. The 2500s are freshly charged from my LaCross, the Eneloops are fresh from the packaging.

Methodology -

1. Put in battery.
2. Charge till full until the pilot lamp lights up.
3. Discharge 1 cycle.
4. Charge till full again.
5. Discharge.
6. Measure.
7. Go back to step (4)

I did 6 runs each and timed using my Casio digital watch


Sanyo 2500maH Sanyo Eneloops
============= =============
5.41s.........4.66s
5.55s.........4.65s
5.53s.........4.62s
5.47s.........4.72s
5.49s.........4.74s
5.51s.........4.78s


This is by no means scientific so read the results with a big pinch of salt. The other thing I noticed about the Eneloops is that it seems to pump out lower voltage. Why do I say so? I used it in my MD player. My MD player takes a gumstick NiMH and can optionally use a AA sized battery in an external battery car.

When I put in a normal NiMH battery, I get full battery status from the MD player. It last me a couple of hours, as expected, before it runs flat. When I put in the Eneloop, the MD player complains that battery is extremely low, with your usual blinking low batt icon. I let it run. It amazingly clocked 9 hours or so, I lost track. I woke up the next morning to see the battery flat.

I quite like the Eneloops, maybe I should retire my entire NiMH fleet

Regards,
JK

[ortega]

very insteresting, thanks for the info

but 41s - 55s for a recharge is really long
is there something wrong with your Sanyo 2500s

[unseen]

Eh.. I think there's something wrong with your 2500 batteries. Of course, the battery that makes you feels the best is the best.
But If you're planning to dump ur Sanyo 2500 batteries, I'm ready to pick them up..
Can drop me a PM..

[Splutter]

The eneloops have rather low capacity right?

[reflecx]

The amazing thing about the Eneloops is their very low self-discharge. I can leave them in my seldom-used P&S for months, and still use it whenever there's a need.

For professionals that charge their batteries each time before a shoot, Eneloops aren't as cost effective. But for others that don't use their equipment as often, it is truely

[tanjk]

Originally Posted by ortega very insteresting, thanks for the info but 41s - 55s for a recharge is really long is there something wrong with your Sanyo 2500s

I don't think so. It averages 5.5s per cycle. Unless you guys are getting way better times??

Originally Posted by unseen Eh.. I think there's something wrong with your 2500 batteries. Of course, the battery that makes you feels the best is the best. But If you're planning to dump ur Sanyo 2500 batteries, I'm ready to pick them up.. Can drop me a PM..

You want my 2500s? I only have 4 lah. Don't mind exchanging them for a new 2pack of the Eneloops

Anyway, a slow day. So pop in my usual work horse, Sanyo 1850s and repeat. Timing as follows -

6.8s
6.89s
6.76s
6.74s
6.84s
6.73s

Regards,
JK