As well as the advantages which have already been mentioned, there are other reasons to upgrade to an AGM battery. The following circumstances make replacement with an AGM battery advisable:
1. Large numbers of short trips of less than 10 km or with an annual mileage of less than 10,000 km do not allow the alternator enough time to adequately recharge the battery. Each time the battery is not recharged to the full SOC (State of Charge) the harder it makes it for the battery to start the vehicle the next time.
2. If the vehicle is only used on a seasonal basis, an older conventional starter battery can discharge prematurely. This is especially the case if there are unfavorable conditions at the storage location and the charge is not maintained with a battery charger. An AGM battery can withstand long standstill times better, as with this technology, layering cannot occur in the electrolyte which is bound in the separator, so that there is less sulfurization. This means that an AGM battery is easier to recharge than a wet battery after a long standstill period.
3. An AGM battery can also withstand extreme external temperatures and has large power reserves. A conventional starter battery responds to great heat and cold with a rapid decrease in capacity and discharges faster.
4. If the vehicle is equipped with a large number of non-standard electrical devices, which have an increased power consumption, e.g. a sophisticated sound system, the AGM battery provides the vehicle with the necessary power, which a conventional wet battery cannot provide.