Enhanced Flooded Batteries (EFB) are built for higher performance and reliability than standard flooded batteries. They are designed to support standard Start-Stop engines, which put greater demands on the battery. Even for non Start-Stop vehicles, the EFB can also be fitted to enhance starting performance and meet the ever increasing electrical demands of modern vehicles. The EFB provides increased cyclic stability, enabling faster recovery from deep discharges. In a Start-Stop vehicle, the EFB maintains power supply to the electrical devices when the engine shuts off, and is able to restart in a fraction of a second. Features and Benefits: Enhance Flooded Battery (EFB) are built for high performance and reliability, even under extreme conditions. High-density active material and optimized particle size ensures extra-long service life. Optimised negative grid alloy retards corrosion and prolongs battery life during high depth of discharge cycling. Extended cycle life compared with conventional battery. Better deep cycling property to allow cranking with lower state of charge. Higher charge acceptance for lesser charging opportunities. Higher thermal stability for use in engine compartment and hot climate regions. Please include your phone number on the order form (the Courier needs this). Note the Courier will normally leave the battery if there is nobody home. Please nominate a safe place to leave your battery, or suggest an alternative such as a neighbour.
Enhanced Flooded Batteries (EFB) are built for higher performance and reliability than standard flooded batteries. They are designed to support standard Start-Stop engines, which put greater demands on the battery. Even for non Start-Stop vehicles, the EFB can also be fitted to enhance starting performance and meet the ever increasing electrical demands of modern vehicles. The EFB provides increased cyclic stability, enabling faster recovery from deep discharges. In a Start-Stop vehicle, the EFB maintains power supply to the electrical devices when the engine shuts off, and is able to restart in a fraction of a second. Features and Benefits: Enhance Flooded Battery (EFB) are built for high performance and reliability, even under extreme conditions. High-density active material and optimized particle size ensures extra-long service life. Optimised negative grid alloy retards corrosion and prolongs battery life during high depth of discharge cycling. Extended cycle life compared with conventional battery. Better deep cycling property to allow cranking with lower state of charge. Higher charge acceptance for lesser charging opportunities. Higher thermal stability for use in engine compartment and hot climate regions. Please include your phone number on the order form (the Courier needs this). Note the Courier will normally leave the battery if there is nobody home. Please nominate a safe place to leave your battery, or suggest an alternative such as a neighbour.
Bosch Q85L St Hightec EFB Stop-Start Car Battery
Enhanced Flooded Batteries (EFB) are built for higher performance and reliability than standard flooded batteries. They are designed to support standard Start-Stop engines, which put greater demands on the battery. Even for non Start-Stop vehicles, the EFB can also be fitted to enhance starting performance and meet the ever increasing electrical demands of modern vehicles. The EFB provides increased cyclic stability, enabling faster recovery from deep discharges. In a Start-Stop vehicle, the EFB maintains power supply to the electrical devices when the engine shuts off, and is able to restart in a fraction of a second. Features and Benefits: Enhance Flooded Battery (EFB) are built for high performance and reliability, even under extreme conditions. High-density active material and optimized particle size ensures extra-long service life. Optimised negative grid alloy retards corrosion and prolongs battery life during high depth of discharge cycling. Extended cycle life compared with conventional battery. Better deep cycling property to allow cranking with lower state of charge. Higher charge acceptance for lesser charging opportunities. Higher thermal stability for use in engine compartment and hot climate regions. Please include your phone number on the order form (the Courier needs this). Note the Courier will normally leave the battery if there is nobody home. Please nominate a safe place to leave your battery, or suggest an alternative such as a neighbour.
Enhanced Flooded Batteries (EFB) are built for higher performance and reliability than standard flooded batteries. They are designed to support standard Start-Stop engines, which put greater demands on the battery. Even for non Start-Stop vehicles, the EFB can also be fitted to enhance starting performance and meet the ever increasing electrical demands of modern vehicles. The EFB provides increased cyclic stability, enabling faster recovery from deep discharges. In a Start-Stop vehicle, the EFB maintains power supply to the electrical devices when the engine shuts off, and is able to restart in a fraction of a second. Features and Benefits: Enhance Flooded Battery (EFB) are built for high performance and reliability, even under extreme conditions. High-density active material and optimized particle size ensures extra-long service life. Optimised negative grid alloy retards corrosion and prolongs battery life during high depth of discharge cycling. Extended cycle life compared with conventional battery. Better deep cycling property to allow cranking with lower state of charge. Higher charge acceptance for lesser charging opportunities. Higher thermal stability for use in engine compartment and hot climate regions. Please include your phone number on the order form (the Courier needs this). Note the Courier will normally leave the battery if there is nobody home. Please nominate a safe place to leave your battery, or suggest an alternative such as a neighbour.
in 6 offers
The lowest price for Bosch Q85L St Hightec EFB Stop-Start Car Battery right now is $259.85 at Motorcar, compared across 6 retailers.
The all-time low was $254.99 on 7 Dec 2025 — today's price is 2% above the lowest ever. This is at or near its all-time low — a good time to buy.
Prices last updated 6 July 2026.
Last updated at 06/07/2026 05:13:47
Bosch ST Hightec EFB Battery - Q85L
Delivery $7
Bosch Q85l St Hightec Efb Stop-start - 24 Month Warranty
Free delivery
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Bosch Q85L ST Hightec EFB Stop-Start Car Battery
Free delivery between Wed – Fri
Bosch Q85L ST Hightec EFB 75Ah 660CCA Starting Battery 0 092 S57 106
Free delivery between 9–17 July
Battery BOSCH EFB55D23L (Q85L)
Free delivery between Mon – Wed
Bosch Q85L ST Hightec EFB 75Ah 660CCA Starting Battery 0 092 S57 106 fits Mazda 3 2.5 SP25 (BM543 BN543) PYY1 PY-VPS FWD Petrol Hatchback 11/13-01/19
30-day returns
| Length | 230 |
| Total Height | 225 |
| Volts | 12 |
| CCA | 660 |
Bosch ST Hightec EFB Battery - Q85L
Delivery $7
Bosch Q85l St Hightec Efb Stop-start - 24 Month Warranty
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Bosch Q85L ST Hightec EFB Stop-Start Car Battery
Free delivery between Wed – Fri
Bosch Q85L ST Hightec EFB 75Ah 660CCA Starting Battery 0 092 S57 106
Free delivery between 9–17 July
Battery BOSCH EFB55D23L (Q85L)
Free delivery between Mon – Wed
| Length | 230 |
| Total Height | 225 |
| Volts | 12 |
| CCA | 660 |