
12V 45AH Car Battery
The MF40B20 car battery is designed to provide dependable starting power and efficient electrical performance for compatible automotive applications. Its compact battery format is suited to vehicles requiring the MF40B20 specification, supporting the electrical demands of engine starting and essential vehicle systems. Built for everyday automotive use, the provides a practical battery solution where the correct size and configuration are required.
Choosing the right MF40B20 battery involves checking more than the battery code. Physical dimensions, terminal arrangement, polarity and starting requirements should be matched with the vehicle manufacturer’s specifications to help ensure correct fitment. Confirming these details before installation helps the MF40B20 integrate correctly with the vehicle’s electrical and charging system.
Enhanced maintenance free
Superior service life
Maximum starting power
The Supercharge MF40B20 Battery is available through our nationwide dealer network across Australia. Contact your local store for pricing, availability, and professional advice.
Our complete buying guide explains how to select the correct battery size, understand ratings like CCA and reserve capacity, and tips for installation and maintenance.
| Size | NS40 |
| Volts | 12V |
| Technology | SMF CAL |
| CCA | 400 |
| RC | 68 |
|
AH
i
Ampere Hour (Ah)
A higher Ah rating indicates greater capacity but only Deep Cycle Batteries are designated to provide power for longer periods before recharging. |
45 |
| Length, mm | 196 |
| Width, mm | 128 |
| Height, mm | 199 |
| Total Height, mm | 219 |
| Assembly | D (Positive Left) |
| Post Type | PT |
| Ledge | NL |
| Accessibility | TS |
| Hydro Eye | YES |
| Base Warranty (Private Use) | 40 months |
| Extended Warranty (Private Use) | 50 months |
| Warranty (Commercial Use) | 18 months |
| Warranty (Taxi/Ride Share) | 12 months |
| AP | Automotive Post | CV | Central Venting |
| CT | Centered Terminal | DFA | Dual Fit Aligned Terminals |
| DFP | Dual Fit Parallel Terminals | DST | Dual System Terminals |
| DT | Automotive Post & Stud | DWNT | Dual Wingnut |
| EL | End Ledge | ELPT | Embedded Low Profile |
| EUTR | Embedded Universal/Reverse | F1 | F1 Terminal |
| F1-F2 | F1/F2 Terminal | F2 | F2 Terminal |
| F3 | F3 Terminal | F3W | F3W Terminal |
| F5 | F5 Terminal | F8 | F8 Terminal |
| F9 | F9 Terminal | F10 | F10 Terminal |
| F10M8 | F1 Terminal (1.25mmx15mm Stud I) | F11 | F11 Terminal |
| F11M6 | F11 Terminal (6mm/8mm Insert) | F12 | F12 Terminal |
| F12M8 | F12 Terminal (1.25mmx15mm Stud I) | F13 | F13 Terminal |
| F14M8 | F14 Terminal (1.25mmx15mm Stud I) | F14 | F14 Terminal |
| F18 | F18 Terminal | F22 | F22 Terminal |
| FL | Front Ledge | FDH | Fold Down Handles |
| HE | Hydrometer Eye | M6 | M6 |
| M8-DT | Automotive Post & Stud (1.25mmx15mm Stud I) | M8 | 1.25mmx15mm Stud I |
| OLT | Offset Lug Terminal | PT | Pencil Terminal |
| RT | Recessed Terminal | RPH | Rope Handles |
| RTH | Retractable Handles | STD | Standard Terminal |
| ST | Side Terminal | TS | Top Stud Terminal |
| UT | Universal | WNT | Wingnut |
| A (6 Volts) |
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| C (12 Volts) |
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| D (12 Volts) |
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| E (12 Volts) |
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| F (12 Volts) |
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| G (12 Volts) |
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| H (12 Volts) |
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| Make | Model | Year |
The MF40B20 is an automotive battery designed to provide starting power and electrical energy for compatible vehicles. Its suitability depends on the specific battery requirements of the vehicle.
MF40B20 identifies a specific battery size and configuration. The code can help identify a replacement battery, but compatibility should also be confirmed using the battery’s physical dimensions, terminal layout, polarity and electrical specifications.
The battery must physically fit within the vehicle’s battery compartment while allowing the terminals and hold-down system to align correctly. Checking the MF40B20 battery dimensions and configuration helps ensure proper installation.
Check your vehicle manufacturer’s recommended battery specifications, including battery size, dimensions, terminal configuration, polarity and starting requirements. A battery specialist or vehicle battery finder can also help confirm whether the MF40B20 battery is suitable.