OPTIMA YellowTop YT R-3.7 12V 48Ah 660A R+

Name: OPTIMA YellowTop YT R-3.7 12V 48Ah 660A R+
Brand: OPTIMA Batteries
SKU: O840222000
Price: 421.80 EUR
Availability: OutOfStock

Dual-purpose deep-cycle and starting battery that withstands repeated deep discharge — ideal for heavy electrical accessories, start-stop and vehicles left standing. Maintenance-free AGM SpiralCell.

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Reference: O840222000

Frequently bought together

Brand: OPTIMA
Series: YellowTop
Model: YT R-3.7
Type: Deep cycle
Voltage: 12 V
Capacity: 48 Ah
Cold cranking (CCA): 660 A
Polarity: R+
Terminals: Standard terminal
Dimensions (L×W×H): 237 × 171 × 197 mm
Weight: 17 kg
Maintenance-free
Breather on the top
Intended use: Marine and recreation

About this battery
OPTIMA YellowTop is a dual-purpose (deep-cycle + starting) battery — strong engine starting plus the ability to be drained flat and recharged over and over. Ideal for heavy electrical accessories (audio, winch, lighting), start-stop use, or vehicles that sit unused for long periods. Its AGM SpiralCell construction makes it maintenance-free, spill-proof and vibration-resistant.

Key terms

CCA (Cold Cranking Amps) — cold-start power; higher means a stronger start in the cold
Ah — capacity / energy reserve
L+ / R+ — terminal polarity (which side the positive post is on); important for correct fitment