Phase 3 PT 80 User Manual

16 pages

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P.O. Box 1306, Newport Beach, California 92663 • Phone: 714-751-0488 • Fax: 714-957-1621 • E-Mail: techservice@newmarpower.com

www.newmarpower.com

M-PT-U-LNGFM

As of July 2008

Phase Three

Three Stage Smart Charger

Installation/Operation Manual

Models: PT 80, PT24-45U, PT-24-95U

Section Topic

Page

QUICK REFERENCE DRAWING 2

I) GENERAL INFORMATION 3

II) IMPORTANT SAFETY INFORMATION 3

III) INSTALLATION 4

A) Materials Provided 4

B) Location. 4

C) Mounting 4

D) D.C. Output Wiring 5

E) Multiple Unit Parallel Wiring 6

F) A.C. Input Wiring 6

IV) OPERATION 8

A) Three Stage Charge Regimen 8

B) Time-Out Circuit 8

C) Gel-Cell/Lead-Acid Selector Switch 9

D) Remote Monitor Panel Option 9

E) Temperature Compensation Option 9

F) Equalize Timer Option 10

G) Cooling Fan 11

H) Power On Indicator 11

I) Output Ammeter 11

V) APPLICATION NOTES 11

A) Start-Up 11

B) Constant Versus Occasional Use 11

C) Proper Load Sizing 11

D) Operation with Engine 11

E) Operation as a D.C. Power Supply

or Radar Rectiﬁer 11

VI) SPECIFICATIONS 12

VII) TROUBLESHOOTING 12

VIII) BATTERY CARE TIPS 13

IX) REFERENCE APPENDIX 14

X) PT 80/PT-24-45U UNIT DIMENSION DRAWING 15

XI) PT-24-95U UNIT DIMENSION DRAWING 16

Questions and Answers:

J
Jessica LeeAug 11, 2025
Why does my Phase 3 Battery Charger continue charging at 3 amps or more?
- C
  christine53Aug 11, 2025
  If your Phase 3 Battery Charger continues to charge at 3 amps or more without tapering back, it might be due to a D.C. load connected to the batteries drawing current. To check this, turn off the main battery switch to the D.C. electrical panel or switch off all D.C. loads to see if the charger outputs minimal amperage to fully charged batteries. Another possible cause is a bad cell in one of the batteries. For wet lead-acid batteries, use a hydrometer to check for a shorted cell. Consult the manufacturer for testing maintenance-free batteries.
R
Rachael WilliamsAug 19, 2025
How to troubleshoot Phase 3 Battery Charger when batteries are not fully charging?
- C
  Cory HarveyAug 19, 2025
  If your Phase 3 Battery Charger's batteries are not reaching full charge, there could be several reasons. First, the batteries might be extremely discharged, requiring a longer recharge time. In this case, turn off all D.C. loads and allow the charger 24-48 hours to recharge the batteries. Another reason could be that the charger is limiting its output due to overload or over-temperature conditions. Try reducing the D.C. load and check for the cause of the over-temperature condition. Also, check the fan to ensure there is no blockage at the fan intake on the bottom of the charger. If the fan isn't working, replace it.

Phase 3 PT 80 Specifications

General

Brand	Phase 3
Model	PT 80
Category	Battery Charger
Language	English

Phase 3 PT 80 User Manual

Table of Contents

Questions and Answers:

Phase 3 PT 80 Specifications