Battery Tender Junior 12V .75A Charger - 021-0123

Item # : 36444

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Battery Tender® Junior 12V @ 0.75A

The Battery Tender® Junior is much more than a trickle charger. It has a brain. It's lightweight, compact, and fully automatic; very easy to use, especially in small spaces. It will keep your battery fully charged so that it is ready to go when you are!


  • Perfect for all lead-acid, flooded or sealed maintenance free batteries (AGM and gel cell).
  • Complete 4-step charging program (Initialization, Bulk Charge, Absorption Mode, Float Mode).
  • Automatically switches to float / maintenance voltage after fully charging the battery.
  • If the battery voltage drops too far under load, full charger output power resumes.
  • Solid state two color LED indicates stage of charger.
  • Spark proof.
  • Reverse polarity protected.
  • 12' output cord.
  • 5 year warranty

Manufacturer Part Number: 021-0123

Comparison Chart

ModelJuniorJunior 800 Genius G750Oximiser 9011 AMP
DifferentiatorClassic Best SellerLithium Compatibility6V & 12V CompatibilityDigital DisplayOEM Charger
Output12V, 0.75 Amps12V, 0.8 Amps6-12V, 0.75 Amps14.4V Max, 0.9 Amps12V, 1 Amp
Size3.3" x 2.3" x 1.4" 4” x 2” x 1.4”4.4" x 2.7" x 1.5"5" x 3.5" x 1.5"3.9" x 2.6" x 1.4" 
ChemistryLead Acid, AGM, GelLead Acid, AGM, Gel, LithiumLead Acid, AGM, Gel

Lead Acid, AGM, Gel

Lead Acid, AGM



Alligator Clamps & EyeletsAlligator Clamps & Eyelets Alligator Clamps with EyeletsAlligator clips, Eyelets, Wall bracketQuick Connect Adapter & Alligator Clips
Connection typeSAESAEProprietary, SAE availableSAESAE
Cord length12 feet12 feet5 feet4 + 3 feet12 feet
CertificationUL / CSA / BC / FCCBC / FCCUL / CSA / BC / FCC / NRTL NRTLU L/ cUL / FCC / BC
Warranty5 years5 years5 years2 years5 years