In short
- 12 V · 8 Ah · 105 A EN
- 136 × 75 × 133 mm · positive terminal on the left
- Satkit replacement: YB7-A AGM Motorcycle Battery
The YB7-A is a 12 V conventional flooded motorcycle battery from the YuMicron series: 8 Ah, 105 A cold cranking amps (EN) and a case measuring 136 × 75 × 133 mm. It has the positive terminal on the left when you are looking at the label.
Dimensions and specifications
| YB7-A | YB7-A AGM Motorcycle Battery | |
|---|---|---|
| Voltage | 12 V | 12 V |
| Capacity | 8 Ah (10 h) · 8.4 Ah (20 h) | 7 Ah |
| Cold cranking amps | 105 A (EN) | — |
| Length × width × height | 136 × 75 × 133 mm | 135 × 75 × 123 mm |
| Polarity | Positive terminal on the left | Positive terminal on the left |
| Technology | Conventional flooded | AGM |
| Supplied with | — | — |
| Weight | — | 3 kg |
The battery-code column gives the specifications from Yuasa’s listing, the brand behind the code; the other column gives the specifications of the battery sold by Satkit. Capacity is always compared at the same hour rate, and starting current against the same standard.
What does YB7-A mean?
- YB: Yuasa’s YuMicron series of high-performance conventional flooded batteries.
- 7: here, it does roughly correspond to capacity: the YB7-A has 8 Ah at the 10-hour rate.
- -A: the terminal layout, vent outlet and case shape. There is no general rule: the diagram for each battery code is what matters.
Battery codes that are easy to mix up with the YB7-A
| Battery code | Dimensions | Polarity | Difference |
|---|---|---|---|
| YB7L-B | 135 × 75 × 133 mm | Positive terminal on the right | Same case, opposite polarity: it will not work, even if it fits. |
| 12N7-4A | 135 × 75 × 133 mm | Positive terminal on the left | Almost the same case and the same polarity, but lower starting current (70 A EN): it is not a replacement. |
| YTX7L-BS | 115 × 72 × 132 mm | Positive terminal on the right | Opposite polarity and a different case. |
Satkit battery for YB7-A
YB7-A AGM Motorcycle Battery: 12 V and 7 Ah, sealed AGM.
Before switching to a sealed battery
The original battery is conventional flooded. A maintenance-free AGM or gel battery can replace it if the motorcycle’s regulator/rectifier charges between 14.0 and 14.8 V at 3000–4000 rpm. If it charges less, stick with a conventional battery. A sealed battery has no vent tube, so leave the motorcycle’s tube disconnected.
Motorcycles that use the YB7-A
Search for your motorcycle, scooter or ATV by model and year to find its battery code.
