"trees" which would otherwise gradually short circuit the cells.

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Section II

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Shop Equipment
Shop Methods

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CHAPTER 11.
CARE OF THE BATTERY ON THE CAR.
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Any man who goes into the battery repair business will gradually learn
by experience what equipment he finds necessary for his work. Some men
will be able to do good work with comparatively little equipment,
while others will require a somewhat elaborate layout.

[Fig 38.]

Fig. 38. Typical Work Room Showing Bench About 34 Inches High, Lead
Burning Outfit, Hot Plates for Melting Sealing Compound and Hand
Drill-Press for Drilling off Inter-Cell Connectors.

There are some things, however, which are necessary, and the following
lists are given to help the repairman select his equipment. The man
with limited capital will be unable to buy a complete equipment at the
start, but he should add to his equipment as fast as his earnings will
permit. The repairman may be able to "get-by" with crude equipment
when his business is very small, but to make his business grow he must
absolutely have good equipment.

The following list gives the various articles in the order of their
importance. The first seven are absolutely necessary, even for the
poorest beginner. The others are also essential, but may be bought as
soon, as the money begins to come in. Some of the tools must also be
bought before opening doors for business, such as the putty knife,
screwdrivers, pliers, and so on. Each article, which requires
explanation, is described in detail, beginning on page 100.

Equipment Which is Absolutely Necessary

1. Charging Outfit, such as a motor-generator set, rectifier, or
charging resistance where direct current is available.

2. Charging Bench and Accessories. With the charging bench must go the
following:

1. A syringe-hydrometer for measuring specific gravity of
electrolyte, for drawing off electrolyte and for adding water to
cells.
2. A special battery thermometer for measuring temperature of
electrolyte.
3. A voltmeter to measure cell, battery, and cadmium voltages.
4. An ammeter to measure charging current.
5. A glass bottle for distilled water. Also one for