AA battery attachment for MZ-RH910

[HS13]

Hi,

Does anyone know where I can get one of the plastic AA battery attachments that comes with the Sony MZ-RH910 I have misplaced mine and need to buy a replacement. Also, where is the best place to buy the gumstick batteries that this model uses.

Thanks.

[sfbp]

Voila: http://www.partstore.com/SearchResults.aspx?q=1-417-577-11

I recommend the GP gumsticks if you can get them, look around your local battery stores, or on Ebay, My dad in the UK got two with charger, as did I in Canada.

Many of the "Sony" replacements are of dubious heritage. The other make that seems to be quite reliable is available from Oz, namely at Newtons of Sale:

http://cgi.ebay.com/2-x-VT1450M-1450mAh-Batteries-Replaces-Sony-NH-14WM_W0QQitemZ370306038951

[Tom in RI]

I purchased 3 GP gumsticks from BatteriesandButter.com a couple of weeks ago. One drawback here is that you have to order a minimum of $20 (which is why I ordered 3 instead of two). It took 3 cycles of charge and discharge to get the battery I opened to hold a charge for a reasonable time. Any suggestions on how to best handle the other two, should I charge and discharge them also or leave them in the packaging until the first battery gives out?

[sfbp]

My extremely limited experience seems to indicate that you need to get them and keep them alive ASAP. All the really dubious ones needed my MZ-R91 to do the job. Out of curiosity, how (with which machine or charger) did you get it to work?

I think the multiple cycles is always going to be the way. The chemistry has to do with the formation and interconversion of Ni oxide and Ni hydride. IIRC if the battery forms crystals these can prevent the reaction (ie charge/discharge). Probably getting to work a little means that the battery gets naturally hot (as there is some resistance inside it) and the heat breaks down the crystals and the battery appears to recover.

Make any sense? I'm soapboxing here, should probably go look it up.

[Tom in RI]

The machine I have that takes the gumstick is the MZ-M100. I bought a GP charger shortly after I got the unit but I had no luck with the two batteries that came with the charger (also GP's). So I charge the battery, put it in the unit and play until discharge. I don't think I'll ever get the 20 or 30 hours of playback that I think was the expectation of the battery when the player was new but I can live with anything over 5-6 hours of battery life.

[sfbp]

It seems that all your listed models use AA (possibly a wise move!). Earlier seems to be better for the purpose of charging. I think any unit with NetMD may cause trouble as they have to deal with USB which is 5 volts, too, and it perhaps gets under specified for charging (not sure, just a guess).

I think I have power problems with my RH910 (same chassis as yours essentially) so I am not in a position to comment on that unit's ability to charge things fully. If you haven't thrown them out, cleaning of the terminals with a very sharp knife can get them started. Also gentle heat may help to break down the resistive mess in a mishehaving battery - say 200F for 20 minutes. But don't quote me in court