Motobatt Battery Quadflex AGM - MB3U
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Description
Description
Specifically designed for motorcycles, Motobatt batteries offer much higher cranking power and higher amp hour ratings. Their batteries can withstand constant starting without draining the battery or causing long-term cell damage. Their unique terminal design offers far greater versatility, allowing them to fit a wider range of applications which enables stockists to carry a narrower range of batteries for a large market, which makes it easier for retail customers to find a battery to fit their vehicle, in stock.
Motobatt batteries are manufactured from Absorbed Glass Mat (AGM), this design has revolutionised the motorcycle, ATV, lawnmower and small engine industry. QuadFlex provides a unique four-terminal design with two positives, two negatives along with height spacers that permit an almost universal fit. All Motobatt AGM Batteries are maintenance-free, non-hazardous, non-spill, charged and ready to install directly out of the box.
Each plate in the battery is wrapped in a fibrous glass matting which not only absorbs all liquid electrolytes but keeps the plates separated in a cushioned environment. This stops the plates from vibrating which can breakdown the plate and cause short circuits between the plates or break plate welds which results in battery failure. The thick, heavy plates used in Motobatt designs really make the difference.
AGM batteries also have a much lower inherent self-discharge rate than wet flooded types. And, as a higher amp hour AGM battery, the Motobatt battery can also discharge more deeply and recover repeatedly under the vehicle alternator charge or through maintenance charging. A standard flooded cell battery is not capable of withstanding this type of cycling without premature failure.
Your Motobatt is a Factory Activated battery, it comes to you pre-conditioned and fully charged for optimum performance and ready to install out of the box. 80% of early Powersports battery failure is caused by faulty activation of the dry battery plates. Additionally, you never have to mess with acid or top up fluid levels or remove corrosion from the terminals caused by gassing, which are all common with standard flooded battery types.
Specifications:
- Voltage: 12V
- C(10) Ah: 3.8
- C(20) Ah: 4
- CCA (Cold Cranking Amps): 50A
- MCA (Marine Cranking Amps): 105A
- PHCA (Pulse Hot Cranking Amps): 226A
- Weight: 1.34kg (2.95lbs)
- Dimensions (LxWxH): 98 x 56 x 110mm (3.86 x 2.2 x 4.33)
- Terminals: 2, 10x15 (Threaded Flag)
- Screws: 2, M5x7 (MPS1)
- Allen Wrench: 1, 3x3 (MPAK1)
- Terminal Caps: NA (Not Applicable)
- Spacer: None
Features:
- Patented QuadFlex multi-fit terminals.
- Absorbed Glass Mat technology – ensures greater protection against vibration and gives a longer lifecycle.
- Fully sealed – Can be mounted and transported in any position.
- No initial charging – Install and go, charged right out of the box.
- Maintenance Free – No messy acid to worry about.
- 20% more cold cranking amps (CCA).
- Easy accessory connection with multiple terminals.
Motobatt batteries are available via courier delivery as they contain no liquid acid!
Key Features
Key Features
- 12V AGM battery, 4Ah at C(20) and 3.8Ah at C(10)
- 50A cold cranking amps (CCA)
- 105A marine cranking amps (MCA) and 226A pulse hot cranking amps (PHCA)
- Absorbed Glass Mat construction for high vibration resistance and longer service life
- Fully sealed and non-spill — can be mounted and transported in any position
- Factory activated and fully charged; no initial charging required
- Maintenance free — no acid handling and no electrolyte top-ups
- Two 10x15 threaded flag terminals with M5 screws for easy accessory connection
- Compact 98 x 56 x 110mm case at 1.34kg
- Non-hazardous for transport, so it can ship by courier
What's in the Box
What's in the Box
- Motobatt MB3U AGM battery
- 2 x M5x7 terminal screws (MPS1)
- 1 x 3x3 Allen wrench (MPAK1)
Specifications
Specifications
| Brand | Motobatt |
|---|---|
| Model | MB3U |
| Type | Sealed AGM (Absorbed Glass Mat), factory activated, maintenance free |
| Voltage | 12V |
| Capacity C(10) | 3.8Ah |
| Capacity C(20) | 4Ah |
| CCA (Cold Cranking Amps) | 50A |
| MCA (Marine Cranking Amps) | 105A |
| PHCA (Pulse Hot Cranking Amps) | 226A |
| Weight | 1.34kg (2.95lbs) |
| Dimensions (L x W x H) | 98 x 56 x 110mm (3.86 x 2.2 x 4.33in) |
| Terminals | 2 x 10x15 threaded flag |
| Screws | 2 x M5x7 (MPS1) |
| Allen Wrench | 1 x 3x3 (MPAK1) |
| Terminal Caps | Not applicable |
| Height Spacer | None supplied with this model |
| Mounting Orientation | Any position (fully sealed, non-spill) |
| SKU | MB3U |
| Barcode | 6947312400279 |
Operations & maintenance
Operations & maintenance
Supplied factory activated and fully charged — install it as-is; no filling, initial charging or acid handling is required.
Check the battery box dimensions and terminal positions against your bike before fitting; this model uses two threaded flag terminals and no height spacers.
Fit the supplied M5x7 screws with the included 3mm Allen key and tighten only until snug — over-torquing can damage the terminal inserts.
Disconnect the negative lead first when removing the battery and reconnect it last when refitting, to reduce the risk of a short across the frame.
As a sealed non-spill unit it can be mounted in any position, but keep it clear of exhaust heat and secure it so it cannot move under vibration.
Never add acid or water, and do not attempt to open the case — the electrolyte is absorbed in the glass mat separators.
Only charge with a charger that has an AGM or sealed lead-acid setting, and follow that charger's instructions; unregulated or automotive fast chargers can overheat and damage AGM batteries.
On bikes used infrequently, keep the battery topped up with an AGM-compatible maintenance charger rather than letting it sit flat, and recharge before storing for extended periods.
Store in a cool, dry place away from direct sunlight and heat sources; self-discharge is lower than a flooded battery but is still faster in warm conditions.
Keep the terminals clean and dry, and have the bike's charging system checked if the battery repeatedly goes flat — a faulty regulator or a parasitic drain will shorten the life of any battery.
Recycle the battery through a lead-acid battery collection point at end of life; do not place it in general waste.

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$69.00