Vintage Simmons Drums (UK) Users Group

Hi everybody!
So glad I found this group.
I recently got my sds7 out of storage and it seems the old girl works great... except all the old sounds are gone and she can't hold any new ones with a dead battery.
I have removed the battery card but am unsure what to do next.
My battery looks a lot like this guy's, right down to the green color and white cover:
https://xbs111.wordpress.com/2017/01/23/simmons-sds7-voice-architecture/

Is he right about the modern replacement battery?
"Stock battery in my SDS 7 was a rechargeable 3.6V 110mAh NiCad. Modern replacement battery is a 3 cell 3.6V Ni-MH rechargeable backup battery, typical around 150mAh. mAh (milliampere hour) are not critical, but no need to overdo it. Anything between 100-200mAh should be fine."

Also, how do I remove my battery? Does it simply slide out of the harness/bracket?

If so, will my replacement battery need to be the same height in order to maintain contact?

I am NOT a tech or an engineer, but if this isn't too difficult I feel I can do it.

Thanks!

Hi,

here's the old simple page I made when I replaced the one in my SDS-7.
Hope this helps;

http://www.electronic-obsession.se/studio/simmons/sds7_battery_replacement.html

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electronically yours, jesper

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www.electronic-obsession.se

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Den 2018-04-29 kl. 15:04, skrev timington@... [Simmons_Drums]:

> Hi everybody!
> So glad I found this group.
> I recently got my sds7 out of storage and it seems the old girl works
> great... except all the old sounds are gone and she can't hold any new
> ones with a dead battery.
> I have removed the battery card but am unsure what to do next.
> My battery looks a lot like this guy's, right down to the green color
> and white cover:
> https://xbs111.wordpress.com/2017/01/23/simmons-sds7-voice-architecture/
>
> Is he right about the modern replacement battery?
> "Stock battery in my SDS 7 was a rechargeable 3.6V 110mAh NiCad. Modern
> replacement battery is a 3 cell 3.6V Ni-MH rechargeable backup battery,
> typical around 150mAh. mAh (milliampere hour) are not critical, but no
> need to overdo it. Anything between 100-200mAh should be fine."
>
> Also, how do I remove my battery? Does it simply slide out of the
> harness/bracket?
>
> If so, will my replacement battery need to be the same height in order
> to maintain contact?
>
> I am NOT a tech or an engineer, but if this isn't too difficult I feel I
> can do it.
>
>
> Thanks!
>
>

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