Sanyo charger date code

[Mr Happy]

I haven't seen a key to this before, but if you look on the back of a Sanyo charger like the MQN06 there is a three letter code in the lower right of the rating plate. This is a Year-Month-Day date code for the production lot, decoded as follows:

Year
2006 - K
2007 - L
2008 - M
..

Month
Jan - A
Feb - B
Mar - C
..
Dec - L

Day
1 - A
2 - B
..
26 - Z
27 - 7
28 - 8
29 - 9
30 - 0
31 - 1

I have a unit with code KHV, making it 22nd August, 2006. The date code on the eneloops in the same package was 06-09 (September 2006).

I found this information in a specification document for one of the Sanyo chargers. It's purely of curiosity value of course, but interesting to know.

 

[Black Rose]

My NC-MDR02NU Eneloop charger has a date code of KDZ - April 26, 2006.

The pair of Eneloop AAs that came with it were dated either June or August 2006.

 

[krayzeemofo]

That's odd; my MQN06 just has 'Lot No.' on the back - '3507H' (bought it last week in the Family Pack)

 

[krayzeemofo]

no one?

 

[Mr Happy]

That's odd; my MQN06 just has 'Lot No.' on the back - '3507H' (bought it last week in the Family Pack)

What then is written in the box to the right of Lot No. on your sample?

 

[krayzeemofo]

What then is written in the box to the right of Lot No. on your sample?

nothing....hm...

 

[Mr Happy]

nothing....hm...

Look really closely with a magnifier under good lighting. It could be faint and hard to see?

 

[krayzeemofo]

sadly there is nothing after Lot No.; the actual lot number is in a box below the text 'Lot No.'.

Those are the right-bottom most texts available.

 

[turboBB]

I realize this thread is a bit old now but couldn't find anything else relevant. Here's a pic of the Lot No. and as you can see there is no other code next to it:

This is from a NC-MQN06U that was part of the Eneloop Power Pack set. I'd imagine this can provide date info. Anyone have any ideas?

Thx,
Tim

 

[Mr Happy]

It doesn't appear that the MQN06 lot no. can be decoded in the same way as the MQN05. However, the date code on the batteries is of more practical interest.

 

[Mikl1984]

This is from a NC-MQN06U that was part of the Eneloop Power Pack set. I'd imagine this can provide date info. Anyone have any ideas?

It's 44 week 2009
I have the same charger but more fresh 3710I
Internal photos confirm it An-informal-look-at-the-Sanyo-NC-MQN06U
PCB produced on 32 week 2010

 

[CaesarI]

The NC-MDU01 USB charger appears to use the Letter-Code for lots.
The one I got recently was REP:
2013 = R
E = May
P = 16

-Morgan