Motobatt
Motobatt MB3U · Motorcycle battery 12V 3.8Ah 50A
Reference: BOL-MOTOBATT-MB3U
Motobatt MB3U: motorcycle battery (AGM) with 12 V, 3.8 Ah and 50 A cold cranking current, measuring 98 × 56 × 110 mm.
Motobatt MB3U · Motorcycle battery 12V 3.8Ah 50A images
- Voltage
- 12V
- Capacity
- 3.8Ah (C10)
- Cold cranking amps (EN)
- 50A
- Technology
- AGM
- Dimensions (L × W × H)
- 98 × 56 × 110 mm
Price:
€362.31
Tax included
VAT included. The exact shipping cost is shown in the cart before you pay.
Secure payment
PayPal, bank transfer or cash on delivery, always over an encrypted connection.
Shipping with no surprises
For Spain, Portugal, France, Germany, Italy, Belgium and the Netherlands you see the exact cost before paying. For the rest of Europe we send you a shipping quote, with no obligation.
14 days to return your order
If it does not fit, you have 14 days from delivery to return it unused.
Does it fit your vehicle? Check by number plate or VIN
Enter your number plate or chassis number (VIN): we check whether this battery is compatible with your vehicle.
Who the Motobatt MB3U is for
The Motobatt MB3U is a motorcycle starter battery: compact, vibration-resistant and with just the right power to turn the starter motor and feed the electronics. It handles frame vibration and idle periods better than an adapted car battery.
At 3.8 Ah it is a small battery, typical of 50 to 125 cc scooters and light motorcycles. The MB3U belongs to the Motobatt MOTOBATT QUADFLEX range. See all Motobatt batteries
Motobatt MB3U codes and part numbers
The MB3U is listed under these codes on labels, in garages and in catalogues:
| Commercial reference | MB3U |
|---|---|
| Not to be confused with | Motobatt MB5U (7 Ah, 90 A), Motobatt MB7U (6.5 Ah, 100 A), Motobatt MB9U (11 Ah, 140 A) |
Equivalents and alternatives to the Motobatt MB3U
No other reference in the catalogue fully matches the dimensions and polarity of the MB3U; you will find the closest ones among our motorcycle batteries.
Motobatt MB3U vs mb2.5u and MT4R
What sets the MB3U apart from its neighbours in the Motobatt range:
| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Weight |
|---|---|---|---|---|
| Motobatt MB3U (this one) | 3.8 Ah | 50 A | 98 × 56 × 110 | 1.34 kg |
| Motobatt mb2.5u | 2.5 Ah | – | 80 × 70 × 105 | 1.18 kg |
| Motobatt MT4R | 2.5 Ah | 45 A | 114 × 49 × 86 | 1.15 kg |
- Motobatt mb2.5u: 1.30 Ah less, a different case (80 × 70 × 105 mm).
- Motobatt MT4R: 1.30 Ah less, 5 A less cranking power, a different case (114 × 49 × 86 mm).
What to look at before buying the MB3U
- Length, width and height of the MB3U: 98 × 56 × 110 mm.
- Your current battery should say about 3.8 Ah; a little more is also fine.
- Check the EN amps on your battery: if it says 50 A or less, the MB3U covers your engine.
Frequently asked questions about the Motobatt MB3U
Motobatt MB3U or mb2.5u?
Compared with the MB3U, the Motobatt mb2.5u has 1.30 Ah less. With 3.8 Ah, the MB3U runs longer between charges than the mb2.5u (2.5 Ah). Mind the space: the mb2.5u measures 80 × 70 × 105 mm.
How much does the Motobatt MB3U weigh?
The MB3U weighs 1.34 kg. For reference, the Motobatt mb2.5u (2.5 Ah) weighs 1.18 kg.
Does the Motobatt MB3U come charged and ready to fit?
Sealed AGM and gel batteries leave the factory charged and ready. Conventional ones with a separate acid pack are activated when filled and should be charged before fitting.
Inside the MB3U: AGM technology
The MB3U is AGM: the electrolyte is absorbed in glass fibre mats, so it is sealed and spill-proof. It withstands many more cycles than a conventional lead battery, at the cost of being more sensitive to overcharging.
Keep comparing: alternatives to the MB3U
Reviews
This product has no reviews yet. If you own it, tell us how it has gone: it will help whoever is looking at it now.
