? 12V PbSO4 batteries in 1940 ? : Rare 1940s Brequet electric car discovered ...

[brucedp5]

[ref
electric-vehicle-discussion-list.413529.n4.nabble.com/EVLN-Rare-1940s-Brequet-electric-car-discovered-in-French-garage-tp4661882.html
EVLN Rare 1940s Brequet electric car discovered in French garage
]

Question: Were there 12V batteries in the 1940's. I know that in the U.S
Automakers started changing over from 6V PbSO4 Automotive batteries to 12V
in the late 1950's.

In the piece:
'The Breguet electric car was produced by French aviation manufacturer,
Louis The Brequet electric car in the garage Charles Breguet. During the
war, Breguet was forced to stop producing aircraft and as a way to keep his
workforce employed he switched to building cars. As petrol at this time was
strictly rationed Louis manufactured electric cars and the Berguet became
the everyday people’s car.'

A several months back, I posted about a WWII vintage EV that the NAZI's
forced the locals to make because of their fuel shortage. The locals used
delay tactics to keep their EV from being of use to their invaders. But a
1940 French EV would be before WWII Germany invaded France, so that would
not be the case.

The piece makes no mention of what battery chemistry, so I will assume PbSO4
was used. It did mention a change over in plant manufacturing, so could it
be these were French 12V aircraft batteries?

Anyone know?


{brucedp.150m.com}
...
http://www.scaruffi.com/politics/wwii.html



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[Marcus Reddish]

Dodge and others used 12V from 1914 till 1926 when they changed to 6V.

The WWII Willys MB military jeep was 24V. It had two 12V batteries in
series. So, yes, 12V batteries were definitely used and mass-produced
during and well before the 40's. I would guess many large trucks and
diesels were using 12v and 24V starting throughout the 30's.

After the mainstream switch to 12V most ignition systems still dropped the
voltage to 6V. So even most 80's cars are driving on 6V. 12V is only for
lights and Starter.

I work on lots of 30's-40's rigs and 12V is no better than 6V in terms of
cranking speed or duration. A new battery does wonders.

Cheers,
Marcus

Post by brucedp5
[ref
electric-vehicle-discussion-list.413529.n4.nabble.com/EVLN-Rare-1940s-Brequet-electric-car-discovered-in-French-garage-tp4661882.html
EVLN Rare 1940s Brequet electric car discovered in French garage
]
Question: Were there 12V batteries in the 1940's. I know that in the U.S
Automakers started changing over from 6V PbSO4 Automotive batteries to 12V
in the late 1950's.
'The Breguet electric car was produced by French aviation manufacturer,
Louis The Brequet electric car in the garage Charles Breguet. During the
war, Breguet was forced to stop producing aircraft and as a way to keep his
workforce employed he switched to building cars. As petrol at this time was
strictly rationed Louis manufactured electric cars and the Berguet became
the everyday people’s car.'
A several months back, I posted about a WWII vintage EV that the NAZI's
forced the locals to make because of their fuel shortage. The locals used
delay tactics to keep their EV from being of use to their invaders. But a
1940 French EV would be before WWII Germany invaded France, so that would
not be the case.
The piece makes no mention of what battery chemistry, so I will assume PbSO4
was used. It did mention a change over in plant manufacturing, so could it
be these were French 12V aircraft batteries?
Anyone know?
{brucedp.150m.com}
...
http://www.scaruffi.com/politics/wwii.html
--
http://electric-vehicle-discussion-list.413529.n4.nabble.com/12V-PbSO4-batteries-in-1940-Rare-1940s-Brequet-electric-car-discovered-tp4661889.html
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--
Marcus Reddish

*North Valley Systems LLC*
Stevensville, Montana
406-360-8628
northvalleyev.com
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[Rick Beebe]

Post by Marcus Reddish
Dodge and others used 12V from 1914 till 1926 when they changed to 6V.
The WWII Willys MB military jeep was 24V. It had two 12V batteries in
series. So, yes, 12V batteries were definitely used and mass-produced
during and well before the 40's. I would guess many large trucks and
diesels were using 12v and 24V starting throughout the 30's

The Willys MB was 6V. They switched to 24V for the M38 in 1950. That
said, I don't doubt your statement about 24V being used back then for
other vehicles. The MB was under strict weight restrictions and probably
would have come over weight with 300lbs of batteries in it.

I have read that the 1947 prototype for the Tucker used 24V. WWII
fighters often used 24V.

--Rick

[Marcus Reddish]

You are correct. Sorry, missed that one.

Post by Marcus Reddish
Dodge and others used 12V from 1914 till 1926 when they changed to 6V.
The WWII Willys MB military jeep was 24V. It had two 12V batteries in
series. So, yes, 12V batteries were definitely used and mass-produced
during and well before the 40's. I would guess many large trucks and
diesels were using 12v and 24V starting throughout the 30's

The Willys MB was 6V. They switched to 24V for the M38 in 1950. That said,
I don't doubt your statement about 24V being used back then for other
vehicles. The MB was under strict weight restrictions and probably would
have come over weight with 300lbs of batteries in it.
I have read that the 1947 prototype for the Tucker used 24V. WWII fighters
often used 24V.
--Rick
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[Lee Hart]

Were there 12V batteries in the 1940's?

Before WW2, manufacturers generally built individual 2v cells. They were
packaged into batteries (of whatever voltage was desired) by their
customers. The manufacturers were just starting to put groups of cells
together, for their largest customers. 6v was obviously the most common,
as it was requested by the automakers. But there were 12v and 24v
batteries as well, for trucks, buses, and industrial EVs.

You can still see examples of these large single cells, as they are
still used in industrial vehicles like fork lifts. The "battery" is a
big steel box, and the individual cells slide into it and are wired in
series on top for whatever voltage is needed.

[Roland Wiench]

It was easier to balance these type of industrial batteries with the expose
lead connection bars. Back in the 50's we had chargers at the battery shop
which had multiple charger leads that we can connect to each 2 volt jar.
Jars are separate units that are place in a cell or opening in a group of
jars call a battery.

Today you can actually charge each cell in a battery except for a seal
battery. How do you do it? The method is using a cadmium coated probe that
is inserted into the electrolyte, but does not touch the plates. A cell cap
is use to hold it in place.

See Cadmium Testing in your search engine for this method.

Roland


----- Original Message -----
From: "Lee Hart" <leeahart-***@public.gmane.org>
To: "Electric Vehicle Discussion List" <ev-***@public.gmane.org>
Sent: Saturday, March 16, 2013 12:47 PM
Subject: Re: [EVDL] ? 12V PbSO4 batteries in 1940 ? : Rare 1940s Brequet
electric car discovered ...

Post by Lee Hart

Were there 12V batteries in the 1940's?

Before WW2, manufacturers generally built individual 2v cells. They were
packaged into batteries (of whatever voltage was desired) by their
customers. The manufacturers were just starting to put groups of cells
together, for their largest customers. 6v was obviously the most common,
as it was requested by the automakers. But there were 12v and 24v
batteries as well, for trucks, buses, and industrial EVs.
You can still see examples of these large single cells, as they are
still used in industrial vehicles like fork lifts. The "battery" is a
big steel box, and the individual cells slide into it and are wired in
series on top for whatever voltage is needed.
--
Lee A. Hart | Ring the bells that still can ring
814 8th Ave N | Forget the perfect offering
Sartell MN 56377 | There is a crack in everything
leeahart earthlink.net | That's how the light gets in -- Leonard Cohen
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