LPI (Large Paddle Inductive)
1993 - 1994 25kW  (thin paddle)
1996 - 2000 6.6kW (thick paddle)
SPI (Small Paddle Inductive)
2000 - 2003 6.6kW

Magne Charge is an inductive charging system
developed to provide charging of battery electric vehicles (BEVs).
This system was originally developed by Hughes Electronics (c1993/4 - LPI
thin paddle) and later by General Motors and Toyota (1995 - 2003 - LPI & SPI).
It served OEM production BEV vehicles including the GM EV1 (1996 - 2003),
GM's Chevrolet S10-E (1997 - 1998), as well as the Nissan Altra EV (1998) and
the Toyota Rav4-EV (1996 - 2003).  Early Magna Charge systems were also fitted
to some Solectra and USElectric aftermarket vehicles
as options (1994 - 1996).

Early units were produced by Hughes and then General Motors through their
Delco Electronics subsidiary.  Under license to GM, Toyota developed the SPI
style for their Rav4-EV vehicles.

Production models produced 6.6 kW versions although a high-power
fast-charge 50kW version was in development when GM terminated the
program c2003.  Over the years the Magne Charge was developed in
two basic versions, a large paddle inductive (LPI) and later small paddle (SPI).

Magne Charge inductive systems were originally designed to provide
a safe alternative to conductive charging in any conditions
including rain and snow.
Hughes Electronics - General Motors
Magne Charge - LPI & SPI (Inductive Chargers)
These are GM "Gen
1" LPI (Large Paddle
Inductive) chargers.  
A 'pedestal mount'
unit is displayed on
the left, the'wall  
mount' on the right,
and the 120vac
'opportunity charger'
below.  This
represents the
original family of LPI
Magne Charge units.

It should be noted
that an earlier
version of the LPI
pedestal charger
existed, which,
although there
appearance was the
same as the later
pedistal mounted
units pictured here, it
carried a "thin
paddle" design and
was used in
pre-1995 Magne
Charge equiped
vehicles.

The early version
thin paddle
diamentions were
.383" thick x 5.49
wide" (9.7mm x
139mm).  These
versions were
recalled due to
melting and fire
concerns.

The later LPI
diamentions were
and 0.61" thick x
5.42" wide (15.5mm
x 138mm) for the
more widely
distributed version.
The #2 picture
shows a GM "Gen
2" unit, the second
and last generation
of the GM product.  

The Gen 2 was ultimately
manufactured in two
configurations, 1) the Gen 2
which is a LPI  unit and, 2)
the Gen 2+ [Gen 2 plus]
which is a SPI [Small Paddle
Inductive] unit.  

These units could be
mounted by
pedestal or wall
mount.
The #3 picture is an
example of the final
configuration of the
Mange Charge units,
and is designated as
a TAL unit
manufactured by
Toyota under license
to GM.  TAL stands
for Toyoda
Automatic Loom
Works, Ltd. a
subsidiary of TMC.  
These units could
also be either wall or
pedestal mounted
and originally came
in a LPI
configuration.  The
SPI format was
originally developed
by Toyota.
Here is some data
about the coversion
from LPI to SPI
specifications.

The original LPI units
communicated between the
base station (off- vehicle 'gas
pump') and the on-vehicle
components via RF
communications; however,
Toyota developed the SPI
units to utalize IR
communications.

Although SPI units are
reverse engineered to
accomidate both RF & IR
communications,  LPI units
are not.  Therefore a SPI unit
can charge an LPI vehicle
but not viceversa.
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