I used this BMS for a few months and not being a Windows user I got frustrated with it and switched to a Chargery so no more fighting with Windows. ? I also have a 48vdc Gigavac HX21contactor for sale that I used with the REC. If you are unfamiliar with the Gigavac, It has two coils. Both energize to close the contactors then a low current one holds it closed resulting in an extremely low current draw. https://www.gigavac.com/products/hx21fc
$70 for the contactor
$500 for the REC and all accessories
$70 for the contactor
$500 for the REC and all accessories