Know Your Toyota – Hybrid batteries

Know Your Toyota – Hybrid batteries

[Upbeat music plays] Toyota hybrid models, which are becoming
more and more popular
among Canadians every year, are now available
with two different types
of hybrid battery,
depending on model. Those two battery types
used in Toyota Hybrid
Synergy Drive systems are called Nickel Metal
Hydride and Lithium-ion, based on the different
elements within
their structure. Both battery types
are rechargeable
and perform
the same function, which is to store electrical
energy in the vehicle
and release it to the vehicle’s
electric motor or motors as needed to drive the wheels. Nickel Metal Hydride
type batteries have been used
in Toyota hybrids since the introduction
of the first Prius
in Japan in 1997, with numerous changes
and improvements
to their design and performance
along the way. Significant among
those improvements
are increased energy
densities, which allow today’s battery
packs to be smaller and lighter
for a given energy output. Lithium-ion type batteries
are now widely familiar
for their use
in small electronic devices such as smartphones. They have even greater energy
density than Nickel Metal
Hydride type batteries, which enables even
more efficient packaging,
taking up less space
and weight in the vehicle. The batteries may be
recharged either
by gasoline engine, or through regenerative braking. In plug-in hybrid models, they may also be recharged
from the electrical
grid while stationary. The battery state of charge
at any time can be monitored
on one or more graphic displays within the vehicle. The state of charge
is automatically controlled by the hybrid system
to optimize efficiency so it may not reach
the highest possible
level indicated. This does not indicate
a malfunction. The on-board computer
ensures the hybrid battery
never discharges completely; it maintains an optimum
state of charge
for extended battery life and to ensure the battery
maintains sufficient energy
storage capacity throughout
its life. Frequent use of EV
(electric-vehicle mode)
has no adverse effect
on battery life. Under normal use,
the hybrid battery
is designed to last
the life of the vehicle. While both battery types
are maintenance-free, they do generate heat
when being charged
or discharged and are,
therefore, fitted with their own
cooling systems. If the vent becomes blocked,
the hybrid battery
may overheat, leading to a reduction
in battery output. it is important to always
keep this vent clear
from obstruction. Extreme weather has an effect
on all vehicles:
the lower the temperature, the longer it takes
to reach operating
temperature; the higher the temperature,
the greater the reliance
on the vehicle’s cooling
components. The features and functions
described in this video might not be applicable
to your Toyota model. See your Owner’s Manual
for details. Thanks for watching
this Know Your Toyota video. [Upbeat music fades to silence]

About the Author: Michael Flood


  1. Toyota motor Asia Pacific on their official channel say the nickle metal is better. I demand a response Toyota. Did you screw me over by putting a lithium battery in my 2019 Camry hybrid LE ? Why did Toyota Asia Pacific say nickle metal is better ?

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