The Rechargeable Sealed Lead Acid (SLA) battery meets or exceeds the OEM SLA battery specifications. 100% compatibility with your OEM Battery model. Absorbent Glass Mat (AGM) TechnologyMaintenance-Free Design with Spill Proof ConstructionU.L. RecognizedBrand New, Factory Fresh NOTE: This is a Rechargeable Sealed-Lead-Acid (SLA) Battery. The picture shown above is for illustrative purposes only. Do not hesitate to get in touch if you need more information about the availability of a specific brand. Replace your current battery with a high quality SigmasTek SP12-35 NB battery and you will still get an excellent quality product but much cheaper! Please make sure to check the dimensions of your current battery before ordering. Wide range of Applications: · Uninterruptible Power Supply (UPS) & Solar power systems · Electric wheelchairs, scooters, bikes, switchgear, carts · Alarm and security systems · Emergency first responder equipment & Medical devices · Emergency lighting and signs How often should I replace my batteries? All batteries eventually need replacing as the charge capacity slowly decreases over time. If you are storing your batteries away for a long period of time, we recommended maintaining your SLA batteries once every six months by top charging them to ensure they're still functioning properly. How Long Should I Charge my Battery For? One common question regarding charging SLA batteries is how long you should charge them for. There is a simple formula you can use to get an estimate of the needed charging time. Multiplying the amperage of the battery by 1.3 and then dividing the total by the amperage of the charger will give you the approximate time you need to leave them on a charger. However, most applications have an indicator light that would go tell you when your battery is fully charged and good to be operated. Check Here to Make Sure it Fits