BATTERY TENDER
PLUS
PRODUCT INFORMATION
______________________________________________________________________________________
Deltran Corporation, 801 U.S. Hwy 92 East, DeLand, FL 32724
Page
5
of
5
Phone 386-736-7900 FAX 386-736-0379
www.batterytender.com
Revised April 4, 2002
Battery Tender
®
Plus 12V1.25A:
Stage 1) Bulk Charge:
Red Light On, Green Light Off, Constant Current = 1.25 Amps,
Transition to Stage 2, Absorption Charge when battery voltage reaches 14.4 VDC.
Stage 2) Absorption Charge:
Red Light On, Absorption Voltage = 14.4 VDC Transition
to Float Charge when battery charging current drops below 0.1 amp or until 6 to 8 hours
have elapsed.
Stage 3) There is no Equalization Charge, Go directly to stage 4.
Stage 4) Float Charge:
Red Light Off, Green Light On. Float Voltage = 13.2 VDC. If
an external load is applied to the battery while the charger is in stage 4, Float Charge, and
if the battery voltage drops below a range between 12.0 to 12.5 VDC, then the charge
cycle restarts.
14.4 Volts
Approximately
80% Recharged
Battery Tender Plus Battery Charger
12 Vdc 1.25 Adc Output
Typical Charging Curve
Absorption
(6 to 8 Hours Max)
Charging Time (Hours)
14.0
100% Charge 12.9 Volts
0% Charge 11.4 Volts
Bulk Charge
11.5
11.0
0
1
2
12.5
12.0
13.5
13.0
Open
Circuit
Voltage
Range
5
3
4
6
7
1.25 Amps
16.0
15.0
14.5
15.5
Battery
Terminal
Voltage
(VOLTS)
R
1.2
0.1 Amp
13.2 Volts
Float / Maintenance
13
8
9
10
11
12
16
14
15
0.1
0.2
0
0.6
0.4
1.0
0.8
100%
Recharged
2.0
1.6
1.25
1.4
1.8
Battery
Charging
Current
(AMPS)
Figure 2
Charging Graph: Battery Tender
®
Plus 12V1.25A
