Battery Tender Junior & Plus Battery Chargers User Manual

Safety and operating instructions for Battery Tender Junior and Plus lead‑acid battery chargers.


Battery Tender Junior & Plus Battery Chargers User Manual - cover page
Brand
Battery Tender
Category
Power Management
Document type
User Manual
Language
English
Pages
4
File format
PDF
File size
56 KB
Published
05 October, 2026
Updated
05 October, 2026
MD5 checksum
69F81E87205828562550EFF08004A32A

About this manual

This manual provides important safety warnings, handling precautions, and step‑by‑step operating instructions for the Battery Tender Junior (12 & 6 V, 750 mA) and Plus (12 , 6 , 8 V, 1.25 A) battery chargers. It covers proper charger placement, cable handling, and personal protective measures when working with lead‑acid batteries.

The document also details charger features such as automatic charging modes, status indicator lights, special protections, troubleshooting tips, and a specification summary for both models, helping users safely charge and maintain their batteries.

What's inside

  • Important Safety Instructions
  • General Precautions
  • Charger Maintenance & Extension Cords
  • Personal Precautions
  • Preparing to Charge
  • Automatic Charging Modes
  • Special Features
  • Status Indicator Lights
  • Troubleshooting Checklist
  • Specification Summary

Specifications

Input Voltage / Frequency100 to 132 VAC / 60 Hz
Maximum Input Current0.43 A (Plus) or 0.36 A (Junior)
Typical Output Current1.25 A (Plus) or 0.75 A (Junior)
DC Output Voltage12 V, 8 V, 6 V (Plus) or 12 V, 6 V (Junior)
Maximum Operating Temperature50 °C
Junior Case Dimensions3.313 in L × 2.313 in W × 1.875 in H
Plus Case Dimensions4.875 in L × 3.25 in W × 2.875 in H
Junior Shipping Weight≈ 1.8 lb (0.8 kg)
Plus Shipping Weight≈ 3.0 lb (1.4 kg)

Frequently asked questions

Can I use an extension cord with the charger?

An extension cord may be used only if absolutely necessary and must match the charger’s plug size, be properly wired, and meet the minimum conductor size shown in the table.

What personal safety gear should I wear when working with lead‑acid batteries?

Wear complete eye protection and protective clothing, and remove metal jewelry to avoid short‑circuit hazards.

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