Relistart 12V AGM Auxiliary Battery AUX14 — 14Ah, 200 CCA, BCI Group 400, Maintenance-Free

The Relistart AUX14 is a compact, maintenance-free 12V AGM auxiliary battery delivering 14Ah capacity and 200 CCA for reliable backup power in vehicles with start-stop systems and accessory loads.

If you need a secondary battery that fits tight compartments, powers accessories, or provides a dependable start when temperatures drop, the Relistart AUX14 is built for that role. Its Absorbent Glass Mat (AGM) construction keeps electrolyte immobilized for non-spillable operation, while a 36-month warranty and customer support back the product. Compact dimensions and a left-side positive terminal make installation straightforward in many cars and SUVs that require a BCI Group 400 footprint.

How does this auxiliary battery improve vehicle reliability?

The AUX14 supplies extra current reserve for electronic accessories and supports start-stop systems that can strain a single battery. With a 200 Cold Cranking Amps rating, it helps ensure engine starts in cold conditions and when accessories draw power between starts. AGM construction preserves performance after repeated deep cycles compared with standard flooded batteries.

• 200 CCA for stronger starts in cold weather
• 14Ah capacity for temporary accessory load support
• AGM design reduces risk of spills and vibration damage
• Sealed, maintenance-free operation with no water topping

What makes the AUX14 easy to install and maintain?

Installation is simplified by the battery’s compact footprint (5.9" L x 3.42" W x 5.67" H) and a left-side positive terminal orientation that matches many factory auxiliary battery locations. Because the battery is completely sealed and non-spillable, there’s no need for periodic water checks or electrolyte handling. The battery ships ready-to-use and requires no routine maintenance.

• BCI Group Size 400 fits a variety of compact battery trays
• Left-side positive terminal for direct replacement fitment
• Sealed AGM construction eliminates topping up fluid
• Precharged and ready, reducing installation time

How does performance hold up across seasons and accessories?

The AUX14 is engineered for consistent output across wide temperature ranges, maintaining usable capacity in both hot and cold climates. High discharge capability supports accessory loads like audio systems, auxiliary lighting, and telematics modules without significant voltage sag. The sturdy internal construction resists degradation from vibration and frequent cycling common in daily driving.

• Stable discharge profile for accessory-heavy use
• Robust vibration resistance for road durability
• Designed to retain capacity through temperature swings
• Suitable for repeated charge/discharge cycles

What support and protection come with the purchase?

Relistart provides a 36-month warranty that covers manufacturing defects and abnormal early failures under normal use. Customer support is available for fitment questions and troubleshooting, so you can confirm compatibility before installation. Warranty handling and responsive support reduce downtime when issues arise.

• 36-month limited warranty included
• Direct customer support for fit and installation guidance
• Clear return and replacement options if needed
• Documentation included for warranty claims

Who is this for? If you drive a car or SUV with start-stop technology, use a lot of electrical accessories, or need a secondary battery to protect the primary starting battery, the Relistart AUX14 is a good match. It’s intended for owners who want a compact, maintenance-free AGM solution with dependable cold-cranking ability and a sealed design for safe, flexible mounting locations. Mechanics, fleet managers, and DIY installers looking for a reliable BCI Group 400 auxiliary battery will find the AUX14 practical and cost-effective.