Fulbat Gel Battery - FHD20Hl-BS - Harley

The Fulbat FHD20HL-BS is a 12V 21.1Ah gel motorcycle battery from Fulbat's FitHD range, built specifically for Harley-Davidson applications. It uses a gel electrolyte in a sealed, reinforced case, so it arrives ready to use with no acid filling, initial preparation or ongoing maintenance.

It suits riders replacing the battery in a large-capacity cruiser or tourer who want a straightforward, drop-in fit. The Harley-specific terminal arrangement and case design help it locate correctly in the battery tray, and the reinforced construction is intended to stand up to the vibration these engines produce.

• 12V 21.1Ah high-capacity gel motorcycle battery
• Gel electrolyte in a sealed case — no acid handling required
• Supplied ready to use with no initial preparation
• Maintenance-free in service
• Reinforced construction for vibration resistance
• Harley-Davidson specific terminals and battery case for correct fitment

• Fulbat FHD20HL-BS gel battery (ready to use)

Check the battery's state of charge before first fitting and top it up with a charger suited to gel batteries if needed.
Always disconnect the negative terminal first when removing, and reconnect it last when fitting, to avoid shorting against the frame.
Observe correct polarity and make sure the terminal bolts are firm but not overtightened.
Secure the battery properly in its tray with the factory strap or hold-down; a loose battery will suffer from vibration.
Use only a charger with a gel or AGM setting — conventional high-output or unregulated chargers can damage a sealed gel battery.
Do not attempt to open the battery, remove the terminal cover or add acid or water; it is sealed and maintenance-free.
Keep the terminals and case clean and dry, and wipe away any dirt or corrosion with a dry cloth.
If the motorcycle is stored or used infrequently, connect a compatible maintenance charger or recharge the battery periodically — leaving it flat for long periods will shorten its life.
Store spare batteries in a cool, dry place away from direct sunlight and heat sources.
Recycle the old battery through an authorised collection point; do not place it in household waste.