Deltran 021-1163 Solar Battery Maintainer - 12V, 270mA, AGM/Gel/Flooded

Deltran offers the 021-1163 solar battery maintainer that operates at 12 volts and delivers a steady 270mA output, compatible with flooded, AGM, gel, calcium, and EFB battery types. This battery maintainer is intended to keep automotive and powersports batteries topped off during periods of inactivity.

This 12V battery charger uses a 5-stage automatic charging process with temperature compensation to adapt to environmental changes and avoid overcharging. The maintained charge level helps extend battery life without requiring manual adjustment, ensuring consistent, reliable upkeep.

Safety features include spark-free connection, reverse polarity protection, and short circuit prevention, supporting worry-free continuous outdoor use. This unit is built for connect-and-forget applications and is available for same-day pickup at Bulldog Battery in Willoughby, Ohio, backed by over 35 years of local industry experience.

Deltran’s commitment to quality means this solar-powered battery maintainer provides steady, professional-grade performance for anyone needing to preserve their 12V lead acid batteries confidently.

• Battery Chemistry Compatibility: Supports 12V flooded, AGM, gel, calcium, and EFB batteries ranging from 1.2Ah up to 160Ah, suited for most automotive and powersports applications.
• Multi-Stage Charging Technology: Features a 5-stage automatic charging process with temperature compensation, which optimizes battery health and prevents overcharging during maintenance.
• 270mA Solar Output: Delivers a steady 270mA current that is ideal for maintaining batteries over long periods without causing damage or strain.
• Safety Features: Includes spark-free connection, reverse polarity protection, and short circuit prevention, ensuring safe, continuous operation even outdoors.
• Warranty and Expertise: Comes with Deltran's quality assurance, supported by Bulldog Battery’s 35 years of professional service and knowledge guaranteeing reliable performance.