Casil 12V 18Ah Replacement Battery for Jump-N-Carry JNC660 — AGM Sealed, Nut-and-Bolt Terminals

Casil CA12180 is a 12V 18Ah sealed AGM replacement battery built to drop into Jump-N-Carry JNC660 and similar jump starter units for reliable high-discharge performance.

This compact sealed lead-acid (SLA/AGM) battery is made as a direct fit for legacy Jump-N-Carry models and other portable jump starters that require a 12V 18Ah nut-and-bolt terminal battery. It’s engineered for frequent high-current bursts, vibration resistance, and a wide temperature range to keep jump boxes ready for roadside starts and occasional deep-discharge recovery after long storage.

Will this battery fit my Jump-N-Carry JNC660 or JNC300XL?

Yes — the Casil CA12180 matches the common footprint and terminal style used in many Jump-N-Carry units. Verify measurements and terminal type before ordering to ensure compatibility.

• Nominal voltage: 12 volts
• Capacity: 18 amp-hours (Ah)
• Terminal type: nut-and-bolt fasteners
• Dimensions: 7.13 x 2.99 x 6.57 inches (L×W×H)

How does this battery perform during high-current jumps?

The CA12180 is an AGM-designed SLA battery constructed for high discharge rates, delivering short, powerful bursts of current that jump starter electronics demand. Its design reduces internal loss during cranking, helping ensure consistent starts.

• AGM construction for strong pulse current delivery
• Low internal resistance supports repeated jump attempts
• Maintains performance across a range of temperatures

What kind of durability and mounting options does it offer?

This rechargeable battery can be installed in any orientation and is sealed to prevent spills, which makes it suitable for portable jump boxes subjected to movement, shocks, and changing climates.

• Sealed, spill-proof AGM design
• Shock and vibration resistant for vehicle use
• Mountable in any position to fit compact compartments

How should I maintain and recharge this replacement battery?

Keep the battery charged with an appropriate 12V charger when not in use to maximize life. Follow standard SLA care: store charged, avoid deep discharge when possible, and use a charger compatible with AGM chemistry.

• Use a 12V AGM-compatible charger for best results
• Avoid prolonged deep discharge to extend cycle life
• Store in a cool, dry place when not in service

Who is this for? The Casil CA12180 12V 18Ah replacement is aimed at vehicle owners, mechanics, fleet managers, and anyone who relies on Jump-N-Carry or similar portable jump starters. It suits people who need a compact, spill-proof battery capable of high-current bursts, durable enough for roadside use and reliable after storage.