Yamaha YFM100 Champ (100cc)
battery guide.
Battery fitment can depend on year, trim and model code. Match the configuration in the chart to your ATV before choosing a replacement.
Battery applications for the configurations listed below.
Confirm the year. Check the trim.
The Yamaha YFM100 Champ (100cc) chart references 12N7-3B and 12N7D-3B.These configurations are listed in an identified manufacturer application source.Match the year and configuration, then check the physical installation.
Jump to your year
Battery fitment by year
Each row covers only the configuration shown. Other trims and missing years are not established by this chart.
| Year | Model / trim | Battery |
|---|---|---|
| 1991 | YFM100 Champ (100cc) / YFM100 Champ | 12N7-3B / 12N7D-3B |
| 1990 | YFM100 Champ (100cc) / YFM100 Champ | 12N7-3B |
| 1989 | YFM100 Champ (100cc) / YFM100 Champ | 12N7-3B |
| 1988 | YFM100 Champ (100cc) / YFM100 Champ | 12N7-3B |
| 1987 | YFM100 Champ (100cc) / YFM100 Champ | 12N7-3B |
Battery sizes and specifications
12N7-3B ↗
- Voltage
- 12 V
- Capacity
- 7 Ah
- Cold cranking
- 70 A (EN)
- Dimensions
- 135 × 75 × 133 mm
- Chemistry
- Flooded lead-acid
- Terminals
- Negative left, positive right (as shown in manufacturer top-view layout); Yuasa type 6
12N7D-3B ↗
- Voltage
- 12 V
- Capacity
- 7 Ah
- Cold cranking
- 70 A (EN)
- Dimensions
- 135 × 75 × 150 mm
- Chemistry
- Flooded lead-acid
- Terminals
- Negative left, positive right (as shown in manufacturer top-view layout); Yuasa type 6
Replacement battery research
| Type | Product | Amazon |
|---|---|---|
| Conventional flooded lead-acidStock chemistry |  Yuasa Yuasa Battery YUAM2273B 12N7-3B YUASA BATTERY | View on Amazon ↗ |
| AGM |  Motobatt MotoBatt MB9U (12V 11 Amp) 140CCA Factory Activated QuadFlex AGM Battery Replaces - YB9A, YB9AA, YB9A2, YB9LA2, YB9B, YB9LB, YB9B2, YB9LB2, YB7A, YB7AA, YB7LA, YB7LB, 12N73A, 12N73B, 12N7D3B, 12N74A | View on Amazon ↗ |
As an Amazon Associate, we earn from qualifying purchases. How affiliate links work.
| Type | Product | Amazon |
|---|---|---|
| Conventional flooded lead-acidStock chemistry |  Yuasa Yuasa 12V Standard Battery 12N7D-3B YUAM227DB | View on Amazon ↗ |
| AGM | Motobatt MotoBatt MB9U (12V 11 Amp) 140CCA Factory Activated QuadFlex AGM Battery Replaces - YB9A, YB9AA, YB9A2, YB9LA2, YB9B, YB9LB, YB9B2, YB9LB2, YB7A, YB7AA, YB7LA, YB7LB, 12N73A, 12N73B, 12N7D3B, 12N74A | View on Amazon ↗ |
As an Amazon Associate, we earn from qualifying purchases. How affiliate links work.
1991 Yamaha YFM100 Champ (100cc) battery size
YFM100 Champ
Battery options: 12N7-3B / 12N7D-3B.
- 12N7-3B: 135 × 75 × 133 mm (length × width × height); 12 V; 7 Ah; 70 A (EN).
- 12N7D-3B: 135 × 75 × 150 mm (length × width × height); 12 V; 7 Ah; 70 A (EN).
Compare Conventional flooded lead-acid and AGM options for 12N7-3B and 12N7D-3B. Select a product to shop on Amazon.
1990 Yamaha YFM100 Champ (100cc) battery size
YFM100 Champ
Battery code: 12N7-3B.
- 12N7-3B: 135 × 75 × 133 mm (length × width × height); 12 V; 7 Ah; 70 A (EN).
Compare Conventional flooded lead-acid and AGM options for 12N7-3B. Select a product to shop on Amazon.
1989 Yamaha YFM100 Champ (100cc) battery size
YFM100 Champ
Battery code: 12N7-3B.
- 12N7-3B: 135 × 75 × 133 mm (length × width × height); 12 V; 7 Ah; 70 A (EN).
Compare Conventional flooded lead-acid and AGM options for 12N7-3B. Select a product to shop on Amazon.
1988 Yamaha YFM100 Champ (100cc) battery size
YFM100 Champ
Battery code: 12N7-3B.
- 12N7-3B: 135 × 75 × 133 mm (length × width × height); 12 V; 7 Ah; 70 A (EN).
Compare Conventional flooded lead-acid and AGM options for 12N7-3B. Select a product to shop on Amazon.
1987 Yamaha YFM100 Champ (100cc) battery size
YFM100 Champ
Battery code: 12N7-3B.
- 12N7-3B: 135 × 75 × 133 mm (length × width × height); 12 V; 7 Ah; 70 A (EN).
Compare Conventional flooded lead-acid and AGM options for 12N7-3B. Select a product to shop on Amazon.
Fitment details
The chart lists battery options by year and configuration. Match the complete model and trim shown in the table.
How to confirm your battery
- Match your manufacturer, full model code, year and trim to an OEM manual.
- Compare the existing battery label with the manufacturer-approved battery code.
- Measure length, width and height, including clearance for covers and straps.
- Confirm positive and negative terminal positions, terminal type and cable reach.
- Check the required electrical specification and charging instructions.
Changing battery chemistry?
Check the battery manufacturer's application and charging guidance before moving between lead-acid and lithium. Vehicle charging compatibility, mounting and cold-weather requirements depend on the specific product. Read our AGM and lithium checklist.
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