TYKOOL Group U1R Lithium Battery 12.8V 12Ah 480CCA for Ride-On Mowers & Tractors (Right-Hand Positive)

Overview

Meet the TYKOOL Group U1R lithium battery, a compact, powerful power source engineered for equipment that requires Right-Hand Positive terminals. With a 12.8V nominal rating, 12Ah capacity, and 480 cold-cranking amps (CCA), this battery is designed to deliver confident starts for heavy-duty twin-cylinder engines, even after long winter storage. It is a drop-in replacement for popular models such as Craftsman DLT 2000, DLT 3000 (27386), LT 1000, GT 3000, and John Deere STX38, with dimensions of 194x123x176mm to help you verify fit before you shop.

The TYKOOL U1R is built for real-world use, offering substantial weight savings, advanced protection, and practical monitoring that helps you plan known good service windows rather than surprises when the grass needs mowing. This battery’s core strengths—high starting power, real-time voltage visibility, and rugged all-weather construction—are designed to support dependable, maintenance-free operation across seasons.

Smart features you can rely on

The integrated 6‑way Battery Management System (BMS) guards against common risks such as over-charge, over-discharge, and short circuits. A built‑in LCD voltage display lets you confirm charging output and battery health at a glance, helping you spot potential issues before they affect performance. The system is designed to shut down automatically if exposed to unregulated high voltages, which makes it important to regulate charging sources in older setups.

Durability and convenience go hand in hand. The U1R uses a rugged IP66-rated housing, offering reliable protection from dust, water splashes, and vibration—clear advantages when you wash the deck or mow in damp conditions. At roughly 2.3 kg (about 5.07 lb), it is a fraction of the weight of typical lead-acid packs, which simplifies removal and handling during routine maintenance. With a life expectancy rated for more than 2000 deep cycles, the battery is designed for a long-term, maintenance-free service life in demanding outdoor environments.

Practical benefits and real‑world use

In everyday mowing tasks, a strong starting burst helps kick a stubborn engine to life on chilly mornings. The right-hand positive configuration simplifies installation on compatible equipment, while the compact size and lighter weight reduce the effort required during routine battery swaps. With the LCD readout and robust protection, you can monitor performance and plan charging around your mowing schedule rather than guess when a jump-start will be needed.

• 480CCA cold-start power helps ignition for powerful engines.
• 70% lighter than lead-acid packs reduces tool fatigue during maintenance.
• IP66 housing resists water, dust, and debris during deck washing.
• Built-in LCD displays real-time voltage and state of charge for quick checks.

• 6‑way BMS protection minimizes risk of over-charge or short circuits.
• External regulated charging may be required if your system lacks full-wave rectification (keep output under 15V).
• Drop-in compatibility with listed Craftsman and John Deere models for straightforward upgrades.
• 10-year design life offers long-term value with maintenance-free operation.

Note: If your mower’s charging source is unregulated or exceeds 15.0V, disconnect the internal charging wire and use an external 14.4V–14.6V lithium charger to prevent BMS triggers. This guidance helps you maintain reliable performance without committing to specific maintenance schedules.