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Section 4 - ADJUSTMENTS & REPAIR
4.5.5.
BATTERY TESTING
There are two types of battery tests: Unloaded and
Loaded. The unloaded test is the procedure that will
be discussed. It's the simplest and most commonly
used. An unloaded test is made on a battery without
discharging current. To perform unloaded testing,
check charge condition using either a hydrometer or
voltmeter.
1. Using a voltmeter, voltage readings appear
instantly to show the state of charge. Remember to
hook the positive lead to the battery's positive
terminal, and the negative lead to the negative
terminal.
2. A hydrometer measures the specific gravity of
each cell. The specific gravity tells the degree of
charge; generally, a specific gravity of about 1.265
to 1.280 indicates full charge. A reading of 1.230 to
1.260 indicates the battery should be charged. The
chart on the next page shows the charge level as
measured by syringe float hydrometer, digital
voltmeter and five ball hydrometer.
4.5.6. NEW BATTERY PREPARATION
1. Remove battery from carton.
2. Place battery in a well ventilated area on a level
non-concrete surface.
3. Remove battery cell caps. Fill cells as required
with electrolyte (purchased separately) to proper
level. Fill to 3/16" above cell plates. Filling battery
with electrolyte will bring the battery to 80% charged
state.
4. With cell caps removed, connect battery charger to
battery terminals; RED to positive (+) and BLACK to
negative (-) terminal.
WARNING
DO NOT OVERFILL! Never attempt to charge battery
while installed on the Yard Cruiser. Never use
"BOOST" chargers on the battery.
4.5.7. BATTERY TESTING
State of Charge
100% Charged w/ Sulfate Stop
100% Charged
75% Charged
50% Charged
25% Charged
0% Charged
Methods of Checking Battery Condition
Syringe Hydrometer
1.280
1.265
1.210
1.160
1.120
Less than 1.100
IMPORTANT: 3/16" above cell plates is the recommended
level. However do not try to measure this dimension. Never
place anything in battery other than specified electrolyte.
5. Slow charge the battery at 1 amp for 2 hours to
bring the battery to full charge.
6. After charging, check level of electrolyte and add
as needed to bring level to 3/16" above cell plates.
7. Reinstall cell caps.
8. Install battery into power unit. Connect over flow
tube.
9. Connect positive (+) cable (red) first, from wiring
harness to the positive terminal (+) on battery using
bolt and nut provided in hardware bag. Connect
negative (-) cable (black) last, to negative terminal
(-) on battery using bolt and nut. Apply a small
amount of grease over terminals to prevent
corrosion.
Shield the positive terminal with terminal cover
located on battery harness. This prevents metal from
touching the positive terminal which could cause
sparks.
Digital Voltmeter
12.80v
12.60v
12.40v
12.10v
11.90v
Less than 11.80v
21
WARNING
Five Ball Hydrometer
Five Balls Floating
Four Balls Floating
Three Balls Floating
Two Balls Floating
One Ball Floating
Zero Balls Floating
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