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No, sorry I just have charts for 7 foot tall and 8 foot tall doors

Oh I thought you were looking to see if conventional openers were available with battery backup. I didn't understand that you wanted to add a battery backup to your existing opener

Pretty sure many of the openers (even without battery backup) have been using DC motors for awhile now

The are several conventional garage door opener that you can purchase with battery backup now. Chamberlain and Genie have them

It must be nice not to have to look at that old ugly sink, or trying to clean a cracked sink.

That turned out nice.

Thanks

Best I could do at the moment

maybe this time I'll get the right one

sorry, no I read it out of a catalog at work

assuming this is a 7 foot tall door. the chart says .207 x 2 x 21 1/2" spring

as far as winding

seems like it

assuming this is a 7 foot tall door. the chart says .207 x 2 x 21 1/2" spring

The spring you put on there now. 243x2x30.5 looks like for a 147-158 pound door

Arbor plates

Nice set-up I like that you pinned the plates also.

I think your new spring is probably too strong and you might be running out of winds in your spring