Emergency Battery Lowering We've developed an Emergency Battery Lowering unit for all Elevette ® Winding Drum elevators (500 lb. and 750 lb.). This single device, or a combination of components, can be retrofitted to existing elevators. We recommend that ALL EXISTING Elevette ® Winding Drum elevators be retrofitted with this vital technical upgrade. With power outages becoming more common these days and more and more people living in homes by themselves, Emergency Battery Lowering capability has really become a necessity with elevators. Retrofitting an EBL unit to an existing 500 lb. capacity unit is relatively easy. Please contact the factory for 750 lb. emergency battery lowering retrofitting. We strongly recommend that ALL NEW Elevette ® Winding Drum elevators be equipped with EBL. While we could have made these standard components, we felt you should have more control over what is specified into your elevator orders. We've developed an Emergency Battery Lowering unit for all Elevette ® Winding Drum elevators (500 lb. and 750 lb.). This single device, or a combination of components, can be retrofitted to existing elevators. We recommend that ALL EXISTING Elevette ® Winding Drum elevators be retrofitted with this vital technical upgrade. With power outages becoming more common these days and more and more people living in homes by themselves, Emergency Battery Lowering capability has really become a necessity with elevators. Retrofitting an EBL unit to an existing 500 lb. capacity unit is relatively easy. Please contact the factory for 750 lb. emergency battery lowering retrofitting. We strongly recommend that ALL NEW Elevette ® Winding Drum elevators be equipped with EBL. While we could have made these standard components, we felt you should have more control over what is specified into your elevator orders.