Rated 4.78 out of 5 based on 9 customer ratings
(9 customer reviews)

$13.99

6V 4.5Ah UPS Battery for CSB CP640

SKU: ML4-6931 Category:
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$ 13.99
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Delivering power when you need it, the Mighty Max ML4-6 6 Volt 4.5 AH uses a state of the art, heavy-duty, calcium-alloy grid that provides exceptional performance and service life in both float and cyclic applications.
The ML4-6 is an Absorbent Glass Mat (AGM) technology with a valve regulated design, that can be used in enclosed and indoor environments without leaking or maintenance, providing a superior performance for thousands of models.
Mighty Max SLA batteries are utilized in a wide variety of applications including; Consumer Electronics, Electric Vehicles, Engine Starters, Golf Carts, Hunting, Lawn and Garden Tools, Medical Mobility, Motorcycles, Power sports, Portable Tools, Solar, Toys and Hobby, Access Control Devices, Emergency Lighting, Security and more.
Specifications:
Voltage: 6 Volt
Amperage: 4.5 AH
Chemistry: SLA, AGM
Terminal: F1
Battery Dimensions:
2.76 in x 1.89 in x 4.21 in
Weight: 1.83 Lbs
Warranty
1 Year
Multi Packs Bundled Savings

15 Pack, 1 Pack, 2 Pack, 3 Pack, 4 Pack, 6 Pack, 10 Pack

Volts

6V

Amp Hour

4.5Ah

Chemistry

SLA / AGM

Quantity

1

Length

2.76

Width

1.89

Height

4.21

Weight

1.83 Lbs

Warranty

1 Year

9 reviews for 6V 4.5Ah UPS Battery for CSB CP640

  1. Rated 4 out of 5

    nat

    not a bad battery. just be sure to top it off before relying on a 12v charging source.

  2. Rated 5 out of 5

    guillermo aguilar

    same as the picture no sorprises.

  3. Rated 5 out of 5

    Todd Cochrane

    One month in the replacement batteries for my emergency lights working great made the fire inspector happy.

  4. Rated 5 out of 5

    D. Glass

    Bought to replace battery in fluorescent camping lantern. Works great.

  5. Rated 5 out of 5

    R J Weymouth

    This battery is slightly smaller than the one it replaced, making it very easy to install. It came almost fully charged and it provides plenty of power for our emergency light.

  6. Rated 4 out of 5

    Michael M.

    put it in a lantern, it works.

  7. Rated 5 out of 5

    Ronald D.

    fit perfect & worked great

  8. Rated 5 out of 5

    Web Customer

    This battery was a perfect drop in replacement for my emergency lantern. Installed it and it worked immediately.

  9. Rated 5 out of 5

    Customer

    This battery was a perfect drop in replacement for my emergency lantern. Installed it and it worked immediately.

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Excellent
Mighty Max Battery
Based on 3474 reviews
Arrived quickly. Even got a sticker with it.
Solid looking battery, came well packaged. Have used their battery before for my lawnmower and now looking forward to see how it lasts in my snowmobile.
I can't believe it less than 48hrs since I ordered from Walmart and it's in the machine. What more can I say except great price.
Thanks Larry
Item as described and perfect fit and arrived on time
Battery arrived in a good shape package strait to my door steps
Arrived just in time to power my generator here in the cold Maine winters. Excellent service!
Arrived quickly from WALMART.COM. Perfect size and proper placement in my generator. Installation was easy. Generator fired right up. Battery came fully charged.
New battery. Ready for cold weather!
So far these Might Max batteries are good but it’s only the first day and they were on charge for 12 hrs. I’ll have to come back and do an update at some point in time. Ordered them on Amazon and got them the next day. I was encouraged by Mighty Max to make this google review and post pictures to extend my warranty for 3 months but there is no way to post pictures 🤣🤣🤣 It’s been a few months and I was able to go back and edit, so here is a video I made, the rest of the photos I have deleted. Batteries are still going strong. Update 12-11-2025
They arrived within 2 days of ordering them packaging was really good I haven't put them in my MX350 yet I hit them with my multi meter fresh out of the box and got 12.4v on both batteries so that is good