Go Power GPC-35-MAX User manual

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Smart Battery Charger
GPC-35-MAX
GPC-45-MAX
GPC-55-MAX
GPC-75-MAX
GPC-100-MAX
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Owner’s Manual
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GPC‐35‐MAX/45‐MAX/55‐MAX/75‐MAX/100‐MAX
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Table of Contents
1.0 Important Safety Instructions
Warning: Before you install and use your Go Power! Smart Charger/Converter,
be sure to read these safety instructions.
1.1 General Safety Precautions
1. Do not expose the GP Smart Charger to rain, snow, spray, bilge, or dust. To
reduce risk of hazard do not cover or obstruct the ventilation openings.
2. Do not install the GP Smart Charger in a zero-clearance compartment.
Overheating may result.
3. To avoid a risk of fire and electronic shock, ensure that existing wiring is in
good electrical condition; and that wire size is not undersized. Do not
operate the GP Smart Charger with damaged or substandard wiring.
4. The battery terminal not connected to the chassis has to be connected first.
The other connection is to be made to the chassis, remote from the battery
and fuel line. The battery Smart Charger is then to be connected to the
supply mains.
5. After charging, disconnect the GP Smart Charger from supply mains. Then
remove the chassis connection and battery connection, in this order.
6. Do not charge non-rechargeable batteries.
7. During charging the battery must be placed in a well-ventilated area.
8. The battery Smart Charger must only be plugged-in to a grounded outlet.
9. If the power supply cord is damaged, the manufacturer or its service agent
or a similar qualified person must replace it in order to avoid a hazard.
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Important Safety Instructions 2
Features 3
Installation Guidelines 5
Warranty 8

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2.0 Features
The Go Power!TM Smart Charger (GPC) series power converter / battery charger
converts 120 V nominal AC to 13.6 V DC. As a power supply, its tightly controlled
regulation allows the user to operate any 12 V nominal DC load up to the
converter’s rated output current. As a battery charger, the converter will maintain
the battery, delivering its full-rated current when the battery capacity falls
sufficiently low. The voltage is set to deliver its maximum current for the
necessary period of time that minimizes undue stress to the battery caused by
heating of its cells. This helps to ensure the longest possible life of the battery.
Over time, as the battery nears its full capacity, the converter will float charge the
battery to prevent self-discharge of its cells.
2.1 Protection Features
The GPC MAX is designed with high-quality components to help ensure years of
continuous use. Multiple protection features for a long, trouble-free life protects
the GPC MAX.
Reverse Battery Polarity Protection.
Brown-Out Input Protection.
Over-Current Protection: Cycle-by-cycle peak limiting as well as rated
current limiting to maximize the life of the converter.
Over-Temperature Protection: In addition, it is designed with a unique
proportional fan control circuit. Fan speed is directly proportional to the
converter’s internal ambient temperature. This enables the fan to turn on and
off very slowly, minimizing unwanted fan-starting noise.
4 stage battery charging for battery longevity
Disclaimer
*This unit is designed for flooded lead acid batteries only. AGM & Gel Cells can
be damaged by the equalization mode.

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2.2 Electrical Specifications
2.3 Installation
Disconnect the positive side of the battery before installation. Connect the
positive (red) and negative (black) terminal lugs to battery or load. Always use
the proper size wire based on the amperage of the converter and the battery.
When connecting to a battery, a breaker should be installed within 18” of the
battery, connecting the battery positive to the line side of the breaker, and the
GPC to the load side. Connect Chassis Bonding Lug on the GPC to vehicle
chassis or other grounding source.
2.4 Mounting Location
The GPC can be mounted in any position within an enclosed or interior
compartment. Provide sufficient air space to allow unrestricted airflow in and
around the unit.
2.5 120 Volt AC Input
Plug the GPC AC input cord into a 120 V 3 wire grounded source. See chart for
maximum current draw and required input voltages.
SPECIFICATIONS* GPC-35-MAX GPC-45-MAX GPC-55-MAX GPC-75-
MAX GPC-100-MAX
DC Output Voltage (No
Load) approx. 13.6V (DC) 13.6V (DC) 13.6V (DC) 13.6V (DC) 13.6V (DC)
Output Voltage Tolerance
(No Load) + or - .7% + or - .7% + or - .7% + or - .7% + or - .7%
Output Amperage, Max
Continuous 32 Amps 45-MAX Amps 55-MAX Amps 75-MAX Amps 100-MAX Amps
Output Voltage (Full Load)
approx >13.4V (DC) >13.4V (DC) >13.4V (DC) >13.4V (DC) >13.4V (DC)
Maximum Power Output,
Continuous 430 watts 600 watts 780 watts 1065 watts 1400 watts
Input Voltage Range 105-135-
MAXAC 105-135- MAXAC 105-135- MAXAC 105-135- MAXAC 105-135-MAXAC
Input Voltage Frequency 47-63 47-63 47-63 47-63 47-63
Maximum AC Current @
108Vac 10 Amps 10 Amps 12 Amps 12 Amps 17 Amps
Typical Efficiency >85% >85% >85% >85% >85%
Max Inrush Current, Single
Cycle 40 Amps 40 Amps 40 Amps 40 Amps 40 Amps
Short Circuit Protection Yes Yes Yes Yes Yes
Overload Protection >100-MAX% >100-MAX% >100-MAX% >100-MAX% >100-MAX%
Fan Control Proportional Proportional Proportional Proportional Proportional
Thermal Protection Yes Yes Yes Yes Yes
Working Temperature
Range 0-45-MAX°C 0-45-MAX°C 0-45-MAX°C 0-45-MAX°C 0-45- MAX°C
Dimensions 7.5 x 10.5 x
3.45-MAX” 7.5 x 10.5 x 3.45-MAX” 7.5 x 10.5 x 3.45-MAX” 7.5 x 10.5 x 3.45-MAX” 7.5 x 10.5 x 3.45-MAX”
Weight 5.0 lbs 5.0 lbs 5.0 lbs 5.0 lbs 5.0 lbs
*Specifications subject to change without notice

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2.6 Reverse Polarity Fuses
The GPC is protected against reverse polarity on the DC output. If a battery or
the GPC is hooked up incorrectly, the fuses will blow and can be easily replaced.
Always use the same size and style fuse that came with the converter. To
change the fuses, use a screwdriver to loosen the screws and remove the fuses.
Always replace the fuses with the same type and rating. After inserting the new
fuses, tighten the screws firmly. DO NOT OVERTIGHTEN.
3.0 Installation Guidelines
There are no components within the GPC that, in their normal operation, produce
arcs or sparks. However, all electronic devices have some potential for
generating sparks in the event of failure. Therefore, never install this device in
the same compartment with flammable items such as gasoline or batteries.
3.1 Installation
Disconnect the positive side of the battery before installation. Connect the
positive (red) and negative (black) terminal lugs to battery or load. Always use
the proper size wire based on the amperage of the converter and the battery.
When connecting to a battery, a breaker should be installed within 18” of the
battery, connecting the battery positive to the line side of the breaker, and the
GPC to the load side. Connect Chassis Bonding Lug on the GPC to vehicle
chassis or other grounding source.
3.2 Mounting Location
The GPC can be mounted in any position within an enclosed or interior
compartment. Provide sufficient air space to allow unrestricted airflow in and
around the unit.
3.3 120 Volt AC Input
Plug the GPC AC input cord into a 120 V 3 wire grounded source. See chart for
maximum current draw and required input voltages.
3.4 Reverse Polarity Fuses
The GPC is protected against reverse polarity on the DC output. If a battery or
the GPC is hooked up incorrectly, the fuses will blow and can be easily replaced.
Always use the same size and style fuse that came with the converter. To

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change the fuses, use a screwdriver to loosen the screws and remove the fuses.
Always replace the fuses with the same type and rating. After inserting the new
fuses, tighten the screws firmly. DO NOT OVERTIGHTEN.
4.0 Charge Controller Options
4.1 GPC Charging
The optional GPC allows the GPC to operate as an automatic three-stage smart
charger giving the customer the benefit of a Bulk, Absorption, and Float stage
charging. The charging capacity of the GPC is increased, charge times are
decreased, proper and safe battery charging is ensured, and overcharging is
minimized. The GPC monitors the battery at all times. If the GPC voltage remains
in the float stage for more than seven days, the GPC automatically delivers a
boost charge as a 4th stage called equalize for a predetermined time, then
automatically returns to the normal float stage. The GPC is recommended for
flooded batteries only.
4.1.1 Reduced Charge Times
The Bulk stage allows the batteries to be charged from the full rated load of the
battery. During this stage the batteries are recharged quickly to reduce charge
times.
4.1.2 Increased Battery Capacity
After the Bulk stage, the batteries are held in the Absorption stage for a
controlled period, ensuring a full and complete charge.
4.1.3 Reduced Battery Stress
During the Float stage, the GPC charge voltage is reduced. This minimizes
gassing while maintaining a full charge at the nominal rate of the battery.
4.1.4 Weekly Equalization for Longer Battery Life
If the batteries have not received a smart charge during a seven-day period, the
GPC initiates an equalization stage to top off the batteries, dissolving any sulfate
on the battery's internal plates and avoiding stratification.

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4.1.5 Voltages
The charging voltages used to charge the battery during the three stages differ
depending on the voltage of the battery being charged. If you need to know the
various voltages, you can calculate them as follows:
1. Determine the number of cells your battery has. Each cell is 2 volts.
2. Multiply the number of cells by the appropriate voltage for the individual
charging stage. Use the following table for reference:
Example: A 12 V battery (6 cells) will Bulk charge at 14.76 V (6 x 2.46).
4.1.6 External GPC Dimensions
Charging Stage Voltage Charge per Cell
Bulk Charge 2.46
Absorption Charge 2.36
Float Charge 2.26

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5.0 Warranty
5.1 Go Power!™ 2 Year Limited Warranty
Go Power!™ provides the following limited 2 year warranty (“warranty”) coverage
as applicable to the purchaser (“Purchaser”) of the Go Power!™ branded product
(“Product”) directly from Go Power!™ The following constitutes the terms and
conditions of that limited warranty.
5.1.1 What the Go Power!™ Warranty Covers and for How
Long
Subject to the exclusions and claim procedure set out below, Go Power!™
warrants for a period of 2 years from the date of purchase at the point-of-sale to
the original end-user customer (“Sale Date”), that the Go Power!™ Product
provides coverage as follows:
For the period ending 2 years from the Sale Date, Go Power!™ will, at Go
Power!™’s discretion, repair or replace the Product which fails to meet the
Product Specifications due to a defect in materials or workmanship or apply
credit towards the purchase of new Go Power!™ Product.
To exercise this right, the Purchaser shall ship, at its own expense, and return
the Product to Go Power! according to the return instructions detailed below, and
Go Power!™ will, repair or replace the Product and return it to the Purchaser free
of charge, or offer credit towards the purchase of new Product.
Go Power!™ shall be entitled, at its discretion, to use new and/or reconditioned
parts in performing warranty repair or providing a replacement Product. Go
Power!™ also reserves the right to use parts or Product of original or improved
design in any repair or replacement. All replaced Product and/or any parts
removed from repaired Products become the property of Go Power!™
If Go Power!™ chooses to repair or replace a Product, the above warranty will
continue to apply and remain in effect for the balance of the warranty period
calculated from the Sale Date (and not the repair or replacement date).
If Go Power!™ chooses to offer a credit towards the purchase of new Product,
then the warranty in effect and applicable to the new Product shall apply to the
new Product.
5.1.2 What the Go Power!™ Warranty Does Not Cover
Go Power!™’s warranty does not provide coverage for the following which are
expressly excluded from the above warranty:

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Failure due to normal wear and tear of the Product.
Failure caused by separate computer software supplied with or associated
with a Go Power!™ Product.
Failure due to fire, water, neglect, improper installation, generalized
corrosion, biological infestations, or input voltages that create operating
conditions beyond the maximum or minimum listed in the Go Power!™
specifications including lightning strikes.
Products which have been altered other than by Go Power!™ or authorized
by Go Power!™
Products that have their original identification (trademark, serial number)
markings defaced altered or removed.
Products utilized as a component part of a product expressly warranted by
another manufacturer.
Operation or storage of the Product outside the specification ranges, and/or
alteration or deployment of Go Power!™ Products other than in accordance
with any published or provided user, storage or maintenance requirements.
Failure that is in any way attributable to the improper use, storage,
maintenance, installation or placement of the Go Power!™ Product.
Failure caused by abuse, misuse, abnormal use, or use in violation of any
applicable standard, code or instructions for use in installations, including,
but not limited to, those contained in the National Electrical Code, the
Standards for Safety of Underwriters Laboratory, Inc., Standards for the
International Electrotechnical Commission, Standards for the American
National Standards Institute, or the Canadian Standards Association.
Failure due to acts of God.
5.1.3 Restrictions and Limitations to Go Power!™’s Warranty
This Warranty is not transferable and only applies to the Purchaser.
Go Power!™ does not warrant the results obtained from the implementation
of recommendations made by Go Power!™ or its authorized distributors
concerning the use, design or application of Go Power!™ Products
The end-user who purchases the Product assumes all responsibility and
liability for loss or damage resulting from the handling or use of Go Power!™
Products.
Go Power!™'s liability on any claim, whether in warranty, contract,
negligence, or any other legal theory, for loss, damage or injury arising
directly or indirectly from or in relation to the use of the Go Power!™ Product
shall in no event exceed the purchase price of the Go Power!™ Product
which gave rise to the claim. IN NO EVENT SHALL GO POWER! BE
LIABLE FOR PUNITIVE, SPECIAL, INCIDENTAL OR CONSEQUENTIAL
DAMAGES WHETHER FORSEEABLE OR NOT INCLUDING BUT NOT
LIMITED TO LOSS OF PROFITS OR REVENUES, LOSS OF USE OF
GOODS, OR LOSS OF BARGAIN.

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The Warranty set out above is the sole warranty granted by Go Power!™
with respect to the Product. No oral understanding, representations or
warranties shall be of any effect and Go Power!™ makes no further
warranties, express or implied concerning the Go Power!™ Products other
than the Warranty set out above. The Buyer, where permitted by applicable
law, hereby expressly waives any statutory or implied warranty that the Go
Power!™ Product shall be merchantable or fit for a particular purpose.
5.2 Warranty Return Procedure
Visit www.gpelectric.com to read the “frequently asked questions” section of
our website to troubleshoot the problem. If trouble persists:
1. Call your Go Power!™ Technical Support team (1-866-247-6527).
2. Return defective product to place of purchase.
5.2.1 End Users
Contact your sales representative or Dealer and discuss the problem. Often the
sales representative can troubleshoot common scenarios. If applicable, warranty
will be handled between the End User and the Dealer. Go Power!™ will only
accept returned items from an End User as a last resort. If you are unable to
contact the Dealer, or the Dealer refuses to provide service, please contact Go-
Power! directly.
5.2.2 Dealers
Dealers will handle warranty either through their supplier or Go-Power! if they
qualify as a Purchaser.
5.2.3 Units bought directly from Go Power!™
The Purchaser will return the product, freight prepaid, to Go Power!™ You must
obtain a Return Material Authorization (RMA) number from Go Power!™ before
returning a product. The RMA number MUST be clearly indicated on the outside
of the box.
Items received without an RMA number will be refused.
5.3 Additional Information
Unless approved by Go Power!™ management, all product shipped collect to Go
Power!™ will be refused.

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5.4 Out of Warranty Items
Go Power!™ electronic products are non-repairable, Go Power!™ does not
perform repairs on its products nor does it contract out those repairs to a third
party. Go Power!™ does not supply schematics or replacement parts for any of
its electronic products.
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© 2011 GO POWER!™ By Carmanah Technologies
www.gpelectric.com
MOBI_MAN_GPC_vB_Dec2011