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Yuasa

Yuasa YTX20H-BS Powersports Battery

  • 12 volts, 18 Ah at the 10 hour rate
  • 310 cold cranking amps at 0 F
  • AGM, sealed and spill-proof, no water to add
  • Shipped dry with acid bottle, filled by the owner
  • F2 terminal, vehicle specific fit
  • 6 7/8 x 3 7/16 x 6 1/8 in (175 x 87 x 155 mm)
  • 15.1 lb with acid

Updated 3 days ago · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A sealed AGM powersports battery that arrives dry and is filled once with the supplied acid. Confirm your machine calls for this exact size and terminal, since fit is vehicle specific.

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ASIN: B000WK4BMQModel: YTX20H-BS

Overview

A personal watercraft or powersports owner replacing a stock battery gets a sealed AGM unit that ships dry with its own acid bottle. Once filled, the absorbed glass mat separators hold the electrolyte, so it never needs water topped up.

Maintenance-free AGM construction and lead-calcium plates that hold charge longer between rides make it a low-attention replacement. Activation takes some work, since the owner fills it from the acid container before first use, and the warranty terms are not spelled out.

Who it's for

Owners of personal watercraft and other machines that list this battery size get a sealed, spill-proof replacement. Riders who would rather not handle acid during activation should look for a factory-activated battery.

Pros and cons

Pros
  • Sealed, spill-proof AGM construction
  • Never needs water added
  • Lead-calcium plates hold charge longer
  • Acid bottle supplied for activation
Cons
  • Owner must fill with acid before use
  • Vehicle specific fit, check your manual
  • Warranty terms not listed

Performance notes

Starting power depends on state of charge and temperature, and the cold cranking rating describes output in freezing conditions. The lead-calcium plates hold their specific gravity longer between rides, so a stored machine is more likely to start. The valve regulated design stops water loss, which removes refilling from routine care.

Specifications

BrandYuasa
ModelYTX20H-BS
Dimensions & fit
Item Weight6.3 kg
SizeOne Size
Power & efficiency
Battery TypeLead Calcium
Voltage12 volts
Compatibility & installation
Compatible With Vehicle TypePersonal Watercraft
Included components
Included ComponentsYuasa YUAM62RBH
Unit Count1 Count
Warranty & support
Manufacturer Warranty DescriptionManufacturer Warranty
Other details
Automotive Fit TypeVehicle Specific Fit
Item Type Namelead_acid_battery
OEM Equivalent Part NumberYTX20H
TerminalF2 Terminal

Frequently asked questions

How do I install the Yuasa YTX20H-BS?

It ships dry. The description says the owner fills it with the electrolyte from the supplied plastic container when it is ready to be activated. The listed regular charge current is 1.8 A. Fit type is vehicle specific, so confirm your machine calls for a YTX20H size.

Which vehicles does the Yuasa YTX20H-BS fit?

The specs list personal watercraft and a vehicle specific fit, with YTX20H as the OEM equivalent part number. Check size and terminal against your owner's manual.

Is the Yuasa YTX20H-BS a lithium battery?

No. It is a lead-calcium battery with absorbed glass mat separators, sealed and valve regulated.

How long does the Yuasa YTX20H-BS hold a charge in storage?

The listing says its lead-calcium technology holds specific gravity more than 3 times longer than conventional lead antimony batteries. No storage duration is given.