Tech
Specs
Battery Tender® Junior 6V0.750A:
Stage 1) Bulk Charge: Red Light On, Green Light Off, Constant
Current = 0.750 Amp, Transition to Stage 2, Absorption Charge
when battery voltage reaches 7.2 VDC.
Stage 2) Absorption Charge: Technically, there is no clearly
defined Absorption phase because there is no constant voltage
period before the float / maintenance phase. However in the region
where the battery voltage increases above 7.0 VDC, the normal
minimum absorption voltage for a GEL cell, one could argue that
there that there is some absorption activity taking place in terms
of the battery electro-chemical reaction to the higher voltage.
Stage 3) There is no Equalization Charge, Go directly to stage
4.
Stage 4) Float Charge: Red Light Off, Green Light On. Float Voltage
= 6.6 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 6.0 to 6.25 VDC, then the charge cycle
restarts.

Stage 1) Bulk Charge: Red Light On, Green Light Off, Constant
Current = 0.750 Amp, Transition to Stage 2, Absorption Charge
when battery voltage reaches 14.4 VDC.
Stage 2) Absorption Charge: Technically, there is no clearly
defined Absorption phase because there is no constant voltage
period before the float / maintenance phase. However in the region
where the battery voltage increases above 14.1 VDC, the normal
minimum absorption voltage for a GEL cell, one could argue that
there that there is some absorption activity taking place in terms
of the battery electro-chemical reaction to the higher voltage.
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.
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