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Mobility Aftermarket United Kingdom and Ireland
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Batteries Strong at the start, reliable on the road

Batteries from Bosch
Product portfolio & expert interview

S5 A with AGM technology

For frequent starts and stops and support for brake energy recovery (recuperation)

Bosch S5 A battery with AGM technology

Other areas of application

Comparison of battery types

Bosch S5 A battery

S5 A
Bosch S4 E battery

S4 E
Bosch S5 battery

S5
Bosch S5 AX battery

S5 AX
Technology
Bosch S5 A battery

S5 A
AGM
Absorbent Glass Mat(1), Special grid design(2)
Bosch S4 E battery

S4 E
EFB
Enhanced Flooded Battery(3), Special grid design(2)
Bosch S5 battery

S5
Lead-acid SLI
Starting-Lighting-Ignition/Starter battery with special grid design(2) and labyrinth cover(4)
Bosch S5 AX battery

S5 AX
AGM
Absorbent Glass Mat(1)
Areas of application
Bosch S5 A battery

S5 A
Vehicles of a newer model year or higher class with start/stop system and braking energy recovery (recuperation) and many electrical consumers
Bosch S4 E battery

S4 E
Vehicles of a newer model year or higher class with start/stop system and many electrical consumers
Bosch S5 battery

S5
Newer or higher class vehicles with many electrical consumers
Bosch S5 AX battery

S5 AX
High-end vehicles with a large number of electrical consumers
Service life
Bosch S5 A battery

S5 A
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Bosch S4 E battery

S4 E
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Bosch S5 battery

S5
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Bosch S5 AX battery

S5 AX
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Cold start power
Bosch S5 A battery

S5 A
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Bosch S4 E battery

S4 E
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Bosch S5 battery

S5
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Bosch S5 AX battery

S5 AX
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Cycle stability
Bosch S5 A battery

S5 A
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Bosch S4 E battery

S4 E
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Bosch S5 battery

S5
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Bosch S5 AX battery

S5 AX
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Number of electrical consumers
Bosch S5 A battery

S5 A
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Bosch S4 E battery

S4 E
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Bosch S5 battery

S5
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Bosch S5 AX battery

S5 AX
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Suitability for short journeys
Bosch S5 A battery

S5 A
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Bosch S4 E battery

S4 E
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Bosch S5 battery

S5
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Bosch S5 AX battery

S5 AX
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(1) AGM (Absorbent Glass Mat): acid bound in micro glass fibre mat allows higher energy masses to pass through
(2) Special grid design: patented stamping process for optimized current flow, less corrosion and long service life
(3) EFB (Enhanced Flooded Battery): positive plate coated with polyester scrim provides additional support for the active material and high cycle stability
(4) Labyrinth cap: returns condensed water to the battery, integrated central degassing, backfire protection and additional sealing ring for high operational safety
Bosch HV battery repair kit
All advantages at a glance

HV battery repair kit

Sustainable vehicle use through professional repair of high-voltage batteries – all the details about the HV battery repair kit and information about the pioneering solution for e-mobility.

Tips for testing and storing batteries

Mechanic tests S5A battery with BAT 115

Check batteries

  • Measure voltage with voltmeter (e.g. Bosch BAT 131 / BAT 115)
  • Charge at a voltage below 12.4 V
  • Avoid deep discharge (prevents sulphation and damage)
  • Below 10.5 V = defect, replace battery
  • Only carry out a standard battery test after at least 4 hours of rest after charging
Bosch car batteries SLI (S4 008,S4 E08, S5 A08)

Storing batteries

Store batteries in a dry, cool place (approx. 15 °C) and out of direct sunlight. High temperatures accelerate self-discharge and ageing.

To do:

  • Check voltage every 2 months
  • Charge with OCV below 12.4 V
  • Observe "First in – First out" during storage

Videos

Downloads

Brochure: Passenger-car batteries
Brochure: Auxiliary Batteries
Brochure: Leisure and marine batteries