Battery Tender Junior 750mA Battery Charger
- 12 volt, 750mA output
- Automatic charger and maintainer
- Motorcycle, ATV and powersports use
- Alligator clips and ring terminals
- 2.9 x 2.15 x 4.4 inches
- CSA, ETL, FCC listed
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A small automatic maintainer for motorcycles, ATVs and other powersports, with two connector styles. Weight, cable length and AC input details are missing.
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ASIN: B000CITK8SModel: 021-0123Category: Car Battery Chargers
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Overview
Not a jump starter or a fast charger: this is a compact, low-current automatic charger and maintainer for powersports batteries. It connects with alligator clips or ring terminals.
Low current and automatic operation suit small powersports batteries kept on a shelf between rides, and the two cable styles allow clamping or permanent leads. The limitation is the small output, which works slowly on larger batteries, and the listing leaves out input details and cable length.
Who it's for
A garage with powersports vehicles that see seasonal use. Look elsewhere for large batteries or lithium chemistries, which the listing does not address.
Pros and cons
- Two connector styles
- Safety marks listed
- Low output current
- Cable length unstated
- Input voltage field unclear
- Battery chemistry compatibility unstated
Performance notes
Charge rate is set by the output current, so recovery of a drained battery is slow and the unit is better suited to maintaining one. Automatic operation means the unit manages charging by itself, though stages are not described. The input voltage field gives a low DC-style figure, which does not say how the unit is powered.
Where it stands among car battery chargers
- #3 most-searched brand and model of the 14 car battery chargers lines we track (by search demand, not sales).
From the specs of the 23 car battery chargers we list; not a test result.
Specifications
| Brand | Battery Tender |
|---|---|
| Model | 021-0123 |
| Dimensions & fit | |
| Item Dimensions D x W x H | 2.9 x 2.15 x 4.4 inches |
| Capacity & performance | |
| Output Voltage | 12 volts |
| Power & efficiency | |
| Amperage | 0.75 A |
| Input Voltage | 12 volts |
| Construction & materials | |
| Color | Black/Green |
| Other details | |
| Number of Ports | 1 |
| Connector Type Used on Cable | Alligator Clips, Ring Terminals |
| Specification Met | CSA, ETL, FCC |
Closest rivals on specs
Foval Automatic Trickle Battery Charger 1000mA- Amperage 0.75 vs 1 amps (-25%)
NOCO GENIUS2 2A Smart Battery Charger- Amperage 0.75 vs 2 amps (-62%)
CTEK CS ONE Gen 2 Smart Battery Charger with WiFi- Amperage 0.75 vs 1.8 amps (-58%)
Frequently asked questions
What comes with the Battery Tender Junior?
The listing names a cable with alligator clips and ring terminals. A manual, carry bag or extension is not itemized.
Can the Battery Tender Junior jump start a vehicle?
No. It is described as an automatic charger and maintainer with a 750mA output, not a source of starting current.
What does the Battery Tender Junior work with?
The title names 12 volt batteries for motorcycles, ATVs and more. It does not list battery chemistries.