Trojan L16P-AC Flooded Lead Acid Deep Cycle Battery 6V 420Ah, NOTE: Purchase may be subject to CORE FEES. Please contact us Toll Free for details., , WE CANNOT SHIP FLOODED LEAD ACID BATTERIES VIA FEDEX OR UPS., Depending on your location within the U.S., we can save you hundreds of dollars in shipping by shipping your order truck route delivery. Call one of our sales representatives today! Based on the shipping zip code, commercial address, and product availability; we can arrange a minimal route delivery fee or free local pick-up from a location nearest you! Flooded Lead Acid must ship by common carrier truck freight. List price reflects core being turned in otherwise core fee will apply. Please call for detailsFlooded lead-acid batteries have the longest track record in solar electric use and are still used in the majority of stand-alone alternative energy systems. They have the longest life and the least cost per amp-hour of any of the choices. However the other side of the coin is, in order to enjoy these advantages, they require regular maintenance in the form of watering, equalizing charges and keeping the top and terminals clean (please refer to our maintenance guide above on how to care for these batteries). Some examples of flooded lead-acid batteries used in solar and wind electric systems are 6 volt golf-cart batteries, 6 volt L-16's and 2 volt industrial cells for large systems.Specially designed deep-cycle cells are much less susceptible to degradation due to cycling and are required for applications where the batteries are regularly discharged, such as photovoltaic systems, electric vehicles (forklift, golf cart, electric cars and other) and uninterruptible power supplies. These batteries have thicker plates that can deliver less peak current, but can withstand frequent discharging.Trojan Battery Company is the world leader in deep cycle battery technology. Since 1925