TECMATE Battery Charger - 6/12V TM-321

Whether you're maintaining a vintage race car's battery through the off-season or keeping your shop's emergency starter batteries in peak condition, the TECMATE TM-321 eliminates guesswork with a fully automatic charging program that safely brings any 6V or 12V lead-acid battery to full charge without supervision. Its eight-step charging algorithm prevents overcharging and sulfation—two of the fastest ways to kill a battery—making it an essential tool for anyone serious about preserving battery longevity. Unlike basic chargers that can damage sensitive automotive batteries, this sealed battery maintainer actively protects your investment while you focus on what matters.

• 6V/12V compatible
• 4A output (6V)
• 3A output (12V)
• Eight-step charging
• Sealed battery safe
• Deep cycle capable
• Starter (SLI) rated
• Fully automatic
• No supervision required
• Maintains charged batteries
• Prevents overcharging
• Lead-acid compatible