548016 4 Zoeller Pro Pak Battery Safety Brochure

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Safety. First.
Deep Cycle Battery Handling,
Maintenance & Test Procedures
Zoeller Deep Cycle Battery

The chemistry and plate design of deep cycle batteries are totally different than that of automotive
starting batteries. The grid metal used in the deep cycle battery plate is specifically formulated
to increase the adhesion of high-density active paste material. This provides the best available
running time, cycle life and charge acceptance.
Zoeller deep cycle wet battery employs a low-maintenance design. It does require periodic
maintenance and effective charging service to ensure dependable service life. The purpose of this
service guide is to help you understand the characteristics, operation and care of the battery so
that all of their advantages may be fully realized.

Product may not be exactly as illustrated.

®

Zoeller Pump Company • 3649 Cane Run Rd. • Louisville, KY 40211-1961• Telephone: 502-778-2731 • Fax: 502-774-3624 • Toll Free 1-800-928-7867 • www.zoeller.com

Inspection & Handling
1.

Do not allow the battery to tip or operate at a severe angle in any direction. This
would allow the battery electrolyte to push through the battery vent assembly.

2.
3.

Charge the battery in a well-ventilated area.

4.
5.

If there is evidence of damage – notify Zoeller Pump Co. to make a damage report.

Upon receipt, examine the battery for signs of wetness or impact (which may indicate
damage in shipment or that the battery was tipped beyond a 45° angle during
transit).

Charge the battery before placing in service. Simply connect the battery charger and
allow it to run until it automatically shuts off.

Operating Guidelines
Battery life is usually measured in cycles – but in practical terms, your battery should work
well for three years from the beginning date of service.
However, battery maintenance and charging procedures will either prolong or shorten battery life, depending upon how well recommended
practices are followed.

Other Factors That Affect Battery Life
and Performance:
•	 Batteries are rated in ampere-hours (Ah) and are designed to
perform a specific workload within an established period of
time. Increasing either and/or both of these will over-discharge
the battery and result in shortened life.
•	 Limit discharging the battery beyond 1.75 volts per cell – or
1.125 specific gravity per cell.
•	 Batteries should always be recharged immediately following a
complete discharge period. Never allow the battery to remain
in a fully discharged condition, otherwise permanent damage
will result.
•	 Under normal circumstance the temperature of the battery
electrolyte must not exceed 110° F (43° C). If the battery
is continuously operated at or above this point the service
life of the battery will be severely diminished. Under normal
conditions, battery electrolyte condition should range from 60°
to 100° F (15° to 38° C).
•	 If a battery is ever hot to the touch, allow it to cool to ambient
temperature before charging or discharging.
•	 Keep battery connectors and cabling in good condition. When
disconnecting the battery connector from the equipment, pull
on the connector – not the cable. Damage to the connectors
and/or cables will result in poor battery performance.

Preventative Maintenance
•	 Battery covers and terminals should be kept clean, dry and free
of corrosion. Battery vent caps must be secured to the batteries
during use and charging period. Remove vent caps only to
inspect electrolyte levels or specific gravities.
•	 When batteries or terminals require cleaning, use only
biodegradable cleaner-neutralizer solutions that can be safely
applied and disposed of through a common sanitary sewer.
Other chemical-based solutions are often dangerous, ineffective
and cannot be disposed of in an environmentally safe manner.
•	 If electrolyte is spilled onto batteries or the battery compartment
area, neutralize it with a cloth moistened with a solution of baking
soda and water mixed in the proportion of one pound of baking
soda to one gallon of water. When the electrolyte is neutralized,
wipe the affected area with a water-moistened cloth to remove all
traces of soda.
•	 Inspect cable-to-terminal connections to ensure connections are
tight and free of corrosion. Battery cables must be intact with no
exposed wires.
•	 Preventative maintenance practices should include periodic
inspection of battery specific gravity and open circuit voltage. An
imbalance of specific gravity and open circuit voltage is usually
a sign of improper charging, service infrequency, or a bad cell
condition.

Zoeller Pump Company • 3649 Cane Run Rd. • Louisville, KY 40211-1961• Telephone: 502-778-2731 • Fax: 502-774-3624 • Toll Free 1-800-928-7867 • www.zoeller.com

Watering Service
Deep cycle batteries begin service consuming relatively low amounts of water.
The real need to add water to batteries may vary from weekly service to monthly
service depending upon the operating environment and other external factors.
As batteries age they will use more water, and in warmer climates batteries will
require more frequent service. Equipment owners and users must be vigilant in
performing regular watering service to ensure premium performance and life.
There are two conditions when watering can be harmful to your batteries:

4Over-Watering
q

4Under-Watering
q

Over-Watering dilutes the sulfuric acid levels inside the battery – which results in
poor battery performance. Under-Watering batteries leads to a service-related
overcharge condition, which will shorten battery running times and life.
You can prevent watering-service related problems by using the illustration shown
above as a reference point. Maintain battery liquid levels above the top of the
battery plates – but no higher than the battery cover vent well. Never fill batteries
to the brim of the cell or to a point where they overflow.

Several other rules apply when watering:

SAFETY PRECAUTIONS:
1.	CAUTION: All lead-acid batteries generate highly
flammable hydrogen gas. If ignited, the gas may
explode violently. When working near batteries, always
wear safety glasses, do not smoke or use open flame
near the batteries, remove watches and jewelry, and
avoid causing sparks with tools.
2.	Battery electrolyte is corrosive and can cause
blindness or severe burns. If exposed to battery
electrolyte, immediately flush with water and seek
medical attention.
3.	The batteries in your equipment are electrically live at
all times. Keep the top of the batteries clean and dry to
prevent ground shorts and corrosion.
4.	Do not tip a battery beyond a 45° angle in any direction.
This would allow battery electrolyte to push through the
battery vent assembly.

•	 USE ONLY DISTILLED or DE-MINERALIZED WATER.
•	 Never add battery acid, commercial additives or other foreign material
to the battery.
•	 Watering service should occur only after charging service is
completed. Watering before charging service will result in overflow of
the battery’s electrolyte – causing a dangerous chemical
spill condition and loss of battery capacity.
•	 Never charge the battery if the battery plates are found
to be uncovered/un-submerged in electrolyte. If this
condition is detected before charging service, fill the
battery only until the top of the battery plates are covered
with liquid.
Zoeller deep cycle wet battery features the PROeye
indicator that shows users when watering service is
required. When the color of the eye is:

q	
4Green = No water service is required
q	
4Clear or White = Watering
service is required
The PROeye is an indicator only – and is designed to aid users
with determining when individual cell inspection and/or watering
service is required. Because watering service is most effective
at the completion of charging service – the PROeye should be
inspected at the completion of charge or before the start of duty
cycle. Contact Zoeller’s technical department for more information
regarding this product feature at 1-800-928-7867.

Product may not be exactly as illustrated.

Zoeller Pump Company • 3649 Cane Run Rd. • Louisville, KY 40211-1961• Telephone: 502-778-2731 • Fax: 502-774-3624 • Toll Free 1-800-928-7867 • www.zoeller.com

Troubleshooting
A common procedure for troubleshooting battery performance
involves a three-point procedure:

1. Visual Inspection: Check battery age or length of service if available.

Inspect battery for damage - when physical damage to the battery container or
terminals is present, replace the battery. Be sure no open flame or spark is near
while the battery’s vent caps are removed from the battery. If none, check the
battery’s cell electrolyte levels. Fluid levels should be above the top of plates in all
cells, and no higher
than the top of the
fluid level indicator:
	 If the battery is
sufficiently filled
with electrolyte –
proceed to step
two. If the top of the battery’s plates are not covered with liquid, add water, replace
vent caps and place the battery on charge.

2. 	Specific Gravity Inspection: Hydrometer reading of all cells should be at

least 1.235 and show less than 50 points difference between high and low.
	 More than 50 points difference: replace the battery. Less than 50 points, but some
cells read less than 1.235: recharge the battery. Replace the vent caps during
recharge. Charge the battery using a properly matched automatic charger until
all cells measure a specific gravity of 1.275 to 1.280. If charging won’t bring up
specific gravity, replace the battery.

3. 	Open Circuit Voltage and Electrical Load Test: Battery open circuit
voltage is an effective indication of battery state of charge.

	 Determine the approximate state of charge from the chart at the right.
	 Electrical load testing is an effective troubleshooting technique for identifying
batteries with internal defects – but it is not an approved method for measuring
deep cycle battery capacity. For this reason Zoeller recognizes load test results as
useful only for identifying batteries having bad cell conditions.
	 Batteries with less than 75% state of charge should be charged before an
electrical load test is applied to the battery. When load testing batteries, remove
all battery cables, disconnecting the negative cables first. Make sure the battery
terminals are free of corrosion and dirt.
	 Using a carbon pile load tester, apply a 50 to 75 ampere load for 15 seconds;
remove the load. Refer to the chart at the right to determine the minimum passing
voltage.

Example:
CELL 6 - 1.200
CELL 5 - 1.210
CELL 2 - 1.215
CELL 1 - 1.240
CELL 3 - 1.240
CELL 4 - 1.255

1.300 1.250 1.200 1.150

Product may not be exactly as illustrated.

VARIATION
55 POINTS

BATTERY
WORN OUT

Hydrometer
Float
CELL 6 - 1.225
CELL 5 - 1.230
CELL 2 - 1.235
CELL 1 - 1.240
CELL 3 - 1.245
CELL 4 - 1.250
VARIATION
25 POINTS

READY TO
LOAD TEST

State of
Charge Level

Specific
Gravity

100%
75%
50%
25%
Discharged

1.280 or Greater
1.235 - 1.240
1.190 - 1.195
1.150 - 1.175
1.125 or Less

State of
Charge Level

12 Volt Battery
Open Circuit Voltage

6 Volt Battery
Open Circuit Voltage

100%
75% - 100%
50% - 75%
25% - 50%
0 - 25%
0%

12.6 or Greater
12.4 - 12.6
12.2 - 12.4
12.0 - 12.2
11.7 - 12.0
11.7 or Less

6.3 or Greater
6.2 - 6.3
6.1 - 6.2
6.0 - 6.1
5.95 - 6.0
5.95 or Less

Chart Assumes a Fully Charged Gravity of 1.280.

Battery Voltage Under 15 Second Load
State of Charge 	
12 Volt 	 6 Volt 	 Specific Gravity
100% 	
12.66 	
6.33 	
1.280
75% 	
12.00 	
6.00 	
1.235
If the test voltage is above the minimum, return the battery to service.
If test voltage is below the minimum, replace the battery.

FM2484
1012
Supersedes
0108

®

MAIL TO: P.O. BOX 16347 • Louisville, KY 40256-0347
SHIP TO: 3649 Cane Run Road • Louisville, KY 40211-1961
(502) 778-2731 • 1 (800) 928-PUMP • FAX (502) 774-3624

Your Peace of Mind is Our Top Priority ®

www.zoeller.com

© Copyright 2012 Zoeller Co. All rights reserved.



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