Current turn-around times at our facility have been averaging 5-7 business days for most smaller orders.

SKU: 830352

830352 Velux® Battery Rebuild Service

Shipping calculated at checkout.

Charging Recommendations

This battery is charged using a solar panel on your device. Please ensure that the solar panel is clean and free to obstruction. If you are unsure whether your charger is working properly, please contact an electrician for assistance.


NiCad & NiMH batteries are not regulated when shipped by ground or by air.

This is a battery rebuild service!

You must ship YOUR battery to us to be repaired. We DO NOT sell new, used rebuilt, or aftermarket battery packs.


Rebuild Service for a Velux® 830352 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 830352 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. Don't wait any longer. Send your 830352 battery pack to us for repair today!

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.

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

Payment & Security

Payment methods

  • American Express
  • Diners Club
  • Discover
  • Mastercard
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor do we have access to your credit card information.

Customer Reviews

Based on 3 reviews
Frank L.
Velux Solar Skylight Battery Replacement

MTO provided a quality battery replacement at a very fair price. I followed the instructions to ship my old batteries to them and the rebuilt batteries were sent right away. Getting the batteries from MTO was the easiest part of the process to get my 10 year old solar skylights working again.


Battery charged and works like new. Easy transaction.

Velux Battery

The rebuilt battery performs like new again.