LEMON Manuals: Even more car manuals for everyone
Home >> Mini >> 2010 >> Cooper S, 2D Hatchback, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 243 (General Electrical System - Repair - Convertible (R57)) >> Battery >> 61 20... (Safety) information on AGM battery >> Service life of AGM batteries

Service life of AGM batteries

WARNING: This page is about a different variant/trim than selected.
Fig 1: Service Life Of AGM Batteries Graph
G06917867Courtesy of BMW OF NORTH AMERICA, INC.
AGM BATTERIES SERVICE SPECIFICATIONS

Item Description
1 Available capacity [%]
2 Mileage [thousand km]
3 AGM battery
4 Lead-calcium battery
5 50 % capacity limit
   

In contrast to conventional lead-calcium batteries, the sulfuric acid in a battery with fleece technology is not held freely in the battery housing. Rather, 100% of the sulfuric acid is bound into the mats of the glass-fibre fleece (separators). For this reason, no acid can escape if the battery housing is damaged. In addition, the AGM battery is sealed to be airtight. This is possible because the gases are converted back into water as a result of the separator permeability.