Current turn-around time at our facility has been averaging 10-12 business days for most orders.
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833442 Velux Battery Rebuild Service

833442 Velux® Battery Rebuild Service

$52.99 $89.99

Rebuild Service for a Velux® 833442 battery pack. For the cost of this service, we will open your battery pack, replace all cells, test, and reassemble. Cases, connectors, and circuit boards are re-used and are not replaced or serviced. The performance of our battery packs is equal to or better than that of a brand new battery from the OEM but at a fraction of the cost. Send your 833442 battery to us and let us make it work as well as new. Our trained technicians work on Velux® brand batteries each day. We rebuild almost all types of Velux® brand batteries including those used in diagnostic equipment. Don't wait any longer. Send your 833442 battery pack to us for repair today!

Rebuilt Capacity: 4.5Ah

Note: When we are rebuilding your battery, if your circuit board is found to be defective, we will contact you. At that time we will provide you with the option of sending us another battery or we can refund you for the rebuild service. The old cells are removed and recycled prior to circuit board testing and cannot be shipped back to you. 

Orders containing lithium batteries will ship by ground only regardless of the shipping method chosen.

Note: This is a rebuild service and not an attempt to sell a new or aftermarket battery pack. With this service, you must send your battery to us to be repaired.

Please note that the case on this battery is very brittle. Please be sure to use extra padding when shipping this battery. 

Velux® is a registered trademark. MTO Battery is not affiliated with nor endorsed by Velux®. 

Customer Reviews

Based on 10 reviews
Easy, quick, works!

I hate throwing things out and was so happy to find MTO. They rebuilt and sent back a dead battery quickly, and it works perfectly.

Nailed it

My battery was rebuilt and works great again.


My shades work again!!!

Battery works like new

Battery works like new.

Jim K.
Velux Battery

The service that I received from MTO was very prompt and professional. We sure do appreciate y'all.

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