Web10 Best Cen-tech 12 Volt Battery Chargers of 2023 MSN Guide: Top Brands, Reviews & Prices best products 10 Best Cen-tech 12 Volt Battery Chargers March 2023 Results are Based on. About this item Charge or maintain 12 volt batteries in storage - Automatically maintains the correct voltage Cen-Tech Deluxe 12V 750mA Battery Maintainer & Float Trickle Charge Brand: Cen-Tech 87 ratings 11 answered questions -15% $3796 Was: $44.45 FREE Returns Available at a lower price from other sellers that may not offer free Prime shipping.