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Battery Tender Junior 12V 750 mA 4-Stage Smart Charger

Was: $39.95
Sale Price: $34.95
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Product InformationStore Part Number: 021-0123


When you want to recharge small batteries fast, or maintain a charge on a battery in long-term storage, you need a trickle charger that’s lightweight and easy to use.

The 12V Battery Tender® Jr fits the bill with its compact design that is fully automatic, and can even be used in the small spaces long-term storage can necessitate.

Each Deltran Battery Tender Junior we offer for sale ships with a quick-disconnect ring set and alligator clips. Keep your battery charged and ready to go when you need it.


  • 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


* Flat Rate shipping is for the lower 48 states only.

Tech Specs

  • Dimensions (LxWxH): 3 5⁄16 x 2 5⁄16 x 1 7⁄8 in
  • Weight: 1.5 lb
  • Shipping Weight: 2.0 lb
  • DC Output Amps: 750 mA
  • Absorption Voltage: 14.4 V
  • AC Input Volts: 100 to 132 VAC
  • AC Input Amps: 0.36 Amps
  • Manufacturer: Deltran
  • AC Input Volts Freq.: 60 Hz
  • Float Voltage: 13.2 V
  • Maximum Power (+/- 3%) @ 25° C: 9 W
  • Charge Reset: Battery Voltage Threshold: 12.6
  • Working Temperature: -20° to 50° C
  • Output Banks: 1
  • Regulatory Approval: UL/CSA/CE/
  • Manufacturer Part #: BTjr12v021-0123

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Reviews and Ratings

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Rated 5.00/5 Stars from 1 customer reviews.

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Works better than I expected.
Arrived in two days. My old NightHawk runs better now that its battery is fully charged before riding. The instructions are complete. Steps of operation are explained. I used it to top off a new Prius 12 V battery over night before installation. Mileage jumped.
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Written by Anonymous on May 13, 2019. Verified Purchase — (0 of 1 customers found this review helpful

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Manuals & Tutorials


Order Line: 1-800-362-5397
M–F 6am–5pm PST
Tech Help: 541-474-4421
Fax: 541-471-6014
276 Tech Way, Suite A
Grants Pass, OR 97526
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