Battery Tender Plus 12V1.25A - User Manual

BATTERY TENDER PLUS
PRODUCT INFORMATION
______________________________________________________________________________________
Deltran Corporation, 801 U.S. Hwy 92 East, DeLand, FL 32724 Page
1 of 5
Phone 386-736-7900 FAX 386-736-0379 www.batterytender.com
Revised April 4, 2002
Battery Tender

Plus: Models: 12V1.25A and 6V1.25A
The Battery Tender
®
Plus
12 Volt, 1.25 Amp
6 Volt, 1.25 Amp
GENERAL DESCRIPTION:
The Battery Tender

Plus battery
charger is a desktop, portable, linear
power converter that has a true DC
output at a maximum power level of approximately 18 or 9 watts respectively for the 12V
and 6V models. Both models have a maximum output charging current of 1.25 amps.
NOTE: In recent years, the Sealed, GRT (Gas Recombinant Technology), AGM
(Absorbed Glass Matte), Lead-Acid battery has enjoyed widespread acceptance in a
variety of applications traditionally dominated by flooded battery technology. The
Battery Tender

Plus battery charger circuitry provides a superior configuration to
accommodate the more demanding recharge requirements of this superior battery
technology. Although the original Battery Tender

battery charger will recharge AGM
batteries, the full recharge time is longer than with the Battery Tender

Plus battery
charger. This is because of the different implementation of the absorption charge mode
between these two chargers. Those differences are spelled out in detail in other
documents on the website. See Utility / Frequently Asked Questions.
OUTPUT CABLE CONNECTIONS:
The battery charger DC output cable has
a molded, quick disconnect plug. The ring terminal, alligator clip, and cigarette adapter
output cable accessories all contain the mating plug.
STATUS INDICATOR LIGHTS: The following describes the operation of the
status indicator lights:
 RED FLASHING - When the red light is flashing, the AC power is applied to the
charger & the microprocessor circuitry is functioning properly, but the DC output
cables are not connected correctly.
 RED - When the red light is on, the battery charger is in the process of fully charging
the battery. In order to properly charge large capacity batteries, the charger may
remain in this mode for several hours or even days.
 GREEN FLASHING - When the green light is flashing, and the red light is on, the
battery is greater than 80% charged and may be removed from the charger and used if
necessary. Leave the battery on charge until the green light is solid whenever
possible. Once the green light begins to flash, it will remain flashing until either the
battery charger output current drops below 0.1 amp, or until 6 to 8 hours has elapsed.

Summary

The Battery Tender Plus

General Description

Overview of the Battery Tender Plus charger, its power, and output current capabilities for 12V and 6V models.

Output Cable Connections

Details the molded, quick disconnect plug on the DC output cable and its accessories.

Status Indicator Lights

Explains the meaning of different LED light states: Red Flashing, Red, and Green Flashing.

Special Troubleshooting Information

No Indicator Lights Turn On

Troubleshooting steps for when neither the red nor green charger status indicator lights are illuminated.

Green Light On Immediately for Discharged Battery

Addresses the issue of the green light activating immediately when charging a known discharged battery.

Delayed Green Light After Power Cycle

Explains the delay in the green light appearing after AC power is removed and reconnected.

Red Light Comes On After Green Light

Describes scenarios where the red light turns on after the green light has been illuminated.

Battery Tender Plus 6 V1.25 A Charging Process

Bulk Charge Stage

Details the Bulk Charge stage: Red Light On, Green Light Off, Constant Current of 1.25 Amps.

Absorption Charge Stage

Describes the Absorption Charge stage: Red Light On, Absorption Voltage of 7.25 VDC.

Float Charge Stage

Explains the Float Charge stage: Red Light Off, Green Light On, Float Voltage of 6.6 VDC.

Battery Tender Plus 12 V1.25 A Charging Process

Bulk Charge Stage

Details the Bulk Charge stage: Red Light On, Green Light Off, Constant Current of 1.25 Amps.

Absorption Charge Stage

Describes the Absorption Charge stage: Red Light On, Absorption Voltage of 14.4 VDC.

Float Charge Stage

Explains the Float Charge stage: Red Light Off, Green Light On, Float Voltage of 13.2 VDC.

Battery Tender Plus 12V1.25A Specifications

General

Input Voltage	120VAC
Output Voltage	12VDC
Output Current	1.25A
Weight	1.5 lbs
Type	Automatic Battery Charger/Maintainer
Battery Type	Lead-Acid
Safety Features	Reverse polarity protection
Charging Stages	4-Stage Charging: Qualification, Bulk, Absorption, Float