Where do i find the back up battery

Look at the manual it has a list of part numbers, I ordered from amazon

What is the maximum height door in which this cohld open?

Residential go for 10 ft Commercial go for 14 ft

Why is this one almost $200 more than other places for the same part number?

I believe this is a kit that comes with lots of options including the optional locks and safety eyes

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Specifications

Installation Type	Screw-In
Specification Met	UL
UPC	012381184507
Manufacturer	Liftmaster
Part Number	LJ8950W
Item Weight	30.9 pounds
Package Dimensions	28 x 11.82 x 9.75 inches
Item model number	LJ8950W
Is Discontinued By Manufacturer	No
Style	Modern
Item Package Quantity	1
Batteries Included?	No
Batteries Required?	No

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Great price for an authentic product. Fast international shipping too!

3 weeks ago

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Received my product in pristine condition. Great service overall.

1 month ago

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¥177582

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TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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Great experience from order to delivery. Highly recommended!

1 week ago

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LJ8950W LIFTMASTER Rolling Sheet Garage Door Opener 3950 Replacement

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