What is a maintenance free battery?
The maintenance free label is usually used to convey that the battery will not require water additions. In the case of VRLA, most of the charging gasses (which are derived from the water content of the battery fluid) are combined back to water inside the battery.
Are maintenance free batteries better?
The most significant benefit of the sealed design is that no service attention is required, other than ensuring the battery is kept clean and fully charged. Maintenance Free batteries tend to lose electrolyte at a much slower rate than Maintainable models, so extended battery life can be expected as a result.
How long does a maintenance free battery last?
As others have said, it varies from about 3 to 5 years. You can buy batteries with different warranty periods for different prices. Sometimes, the batteries with longer warranty periods will last longer — but not always.
How do I know if my battery is maintenance free?
Non-maintenance-free batteries (also called a “wet-cell” battery) are easily identified by the removable filler caps on the top of the battery. Battery fluid in NMF batteries needs to be regularly checked and topped off.
What is never added to maintenance free batteries?
MAINTENANCE-FREE BATTERIES FOR STANDBY AND ELECTRIC DRIVE SYSTEMS. They are also called VRLA, or “Valve Regulated Lead Acid” batteries. Maintenance-free batteries should never be topped up, therefore there are no filler caps on top. The filler cap is replaced by an over-pressure valve that is normally closed.
Are maintenance free batteries AGM?
AGM batteries are a maintenance free alternative to traditional flooded lead-acid batteries. They are designed to provide powerful bursts of starting amps and run electronics for a longer period of time.
When should I replace my maintenance free battery?
So the rule of thumb is simple for battery replacement: You have approximately four years before the battery will theoretically begin its slide from chemical powerhouse to chemical paperweight. At the four-year mark, start watching for symptoms (which we’ll discuss in a bit) and be prepared to take action.
Can I add water to a maintenance free battery?
RAY: Most people will never need to add water to their maintenance-free batteries. But if your maintenance-free battery does have removable caps, there certainly is no harm in removing them and adding water if the fluid happens to be low.
How do you revive a dead maintenance free car battery?
Ways to Revive a Dead Car Battery
- Jumpstart: Jumper cables and a second battery, battery booster, or second vehicle might be enough to jumpstart the vehicle.
- Distilled Water: If the electrolyte level is low, adding distilled water might be enough to fully-submerge the plates and enable a bit more reaction area.
Can I top up a maintenance free car battery?
Modern, maintenance-free batteries have the advantage that it is no longer necessary to top them up with distilled water. In order for a car battery to perform reliably, a good charge level can be ensured by the use of car battery charger.
