Yamaha F.A.Q.

Passengers can carry most consumer-type batteries and portable battery-powered electronic devices for their own personal use in carry-on baggage.

Lithium Ion:  Passengers can carry most consumer-type batteries and portable battery-powered electronic devices for their own personal use in carry-on baggage. With airline approval, devices can contain larger lithium-ion batteries(101–160-watt hours per battery), but spares of this size are limited to two batteries in carry-on baggage only.  To determine watt hours (Wh), multiply the volts (V) by the ampere hours (Ah).Example: A 12-volt battery rated to 8 Amp hours is rated at 96-watt hours (12 x8 = 96).

Lead Acid:  Often referred to as gel cells and non-spill able wet batteries.  These batteries are allowed in carry-on baggage limited to 12 volts and 100-watthours per battery.  Passengers are also limited to two (2) uninstalled batteries. 

There are a variety of differences between these two batteries however in the simplest terms:

Lithium-ion batteries are one-third (or less) the weight of lead acid batteries.

Lithium-ion batteries charge faster than lead acid batteries.

Lithium-ion batteries have a longer life span, they cycle 5000 times or more compared to just 400-500 cycles in lead acid. Cycle life is greatly affected by higher levels of discharge in lead acid, versus only slightly affected in lithium-ion batteries.

Voltage: Lithium-ion batteries maintain their voltage throughout the entire discharge cycle. This allows for greater and longer-lasting efficiency of electrical components. Lead acid voltage drops consistently throughout the discharge cycle.

Lithium-ion batteries are more expensive.

Lithium-ion batteries require less maintenance.

Lithium-ion batteries are a much cleaner technology and are safer for the environment.

To determine watt hours (Wh), multiply the volts (V) by the ampere hours (Ah). Example: A 12-volt battery rated to 8 Amp hours is rated at 96-watt hours (12 x8 = 96).  For milliamp hours (mAh),divide by 1000 (to get to Ah) and then multiply by the volts.

These Seascooters are designed for use in seawater. It will have less buoyancy in fresh water, lake or pool and may sink in such waters.

All Seascooters come with a battery and charger. Some come with additional accessories, refer to the product page for details.

Some models are neutral buoyant, which means they will not float to the top or sink.  Some are positive buoyant, which means they will float to the surface. Keep in mind Yamaha Seascooters designed for use in seawater. It will have less buoyancy in fresh water, lake or pool and may sink in such waters.

Each model has a different depth rating. Refer to the product pages or user manuals for details.