There is a pre-wired second battery compartment built into the FM500 and FM502 control boxes. For solar applications it is recommended that you purchase an optional second battery for back up cycles during overcast days. 2 batteries working together in the system would last longer compared to an individual battery.
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Mighty Mule Replacement Battery for GTO/Mighty Mule FM500 Automatic Gate Openers, Model# FM150

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Description
Key Specs
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Product Summary

Key Specs
| Attribute | Specification |
|---|---|
item# | 34697 |
Brand | Mighty Mule |
Manufacturer's Warranty | 12 months parts/12months labor |
Ship Weight | 5.6 LB |
| Attribute | Specification |
|---|---|
Accessory Type | Wheels and Accessories |
Compatible With | Mighty Mule and Gto Gate Opener Item#s 34662, 34670 and 34691 |
Product Weight | 6.0000 lb |
Dimensions L x W x H (in.) | 3.0 x 7.0 x 4.25 in |
Reviews
Questions & Answers
Questions
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· 6 years ago
Battery life ?
If I add a 2nd battery will it help extend the battery life ?. Instead of drawing current from just the one. Thought maybe 2 batterys working together would last longer ? Just a thought.
1 answer-
ProductExpert30· 6 years ago
Helpful?
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· 9 years ago
Is this the battery to use with the solar panel FM 123 10 watt
1 answer-
ProductExpert39· 9 years ago
Yes, this battery will work with the FM 123 10 Watt solar panel.
Helpful?
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Warranty
Manufacturer's Warranty
12 months parts/12months labor
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Specifications
Wheels and Accessories
Gate Openers
Wheels and Accessories
Wheels and Accessories
Mighty Mule and Gto Gate Opener Item#s 34662, 34670 and 34691
Dual Gate
All Mighty Mule Gate Openers
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6.0000 lb
lb
1 lb
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3.0 x 7.0 x 4.25 in
46.0 x 12.0 x 6.5 in
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550 lb
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220 lb
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Combination
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16 ft
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Battery
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