BatteryLink™ Automatic Charging Relay - 12V/24V DC 120A Hooks & Pumps the secret Steiner technology generates

the secret Steiner technology generates superior light transmission

Battery life: replaceable battery lasts up to 1 year (assuming 1 hour daily use)

Storage Temp:-40C to 80C (-40F to 176F)

Their robust construction and corrosion-resistance provides long life in the harsh marine environment

The system can be used to remove old oil from an engine or transmission then reversed

BatteryLink™ Automatic Charging Relay - 12V/24V DC 120A Hooks & Pumps the secret Steiner technology generatesAutomatically shares single source of charge with Auxiliary Battery Features 120 Amp continuous rating 12 24V DC auto ranging voltage input Senses charging on two battery banks Side and bottom knockouts for cable connections Clip on cover insulates terminal connections 78" (22 mm) stud length to accept multiple cable terminals Integrated LED indicates ACR status 14" . 032" male quick connect terminals for ground and optional features Largest battery