Yuasa 12V Faston 4.8mm Sealed Lead Acid Battery, 4Ah / 1988068

Do not charge in a sealed enclosure. These batteries should be charged with a constant voltage charger at 2.3 V per cell standby and 2.5 V per cell with a current limit of 0.25 x capacity (Ah) for cyclic applications (max 20 hour charging). Yuasa Standard NP Range. The Yuasa NP Series batteries set the standard for quality and excellence in the field of rechargeable batteries. These high-quality batteries ensure that no electrolyte leakages occur from the case or terminals. The NP series range is almost maintenance-free with the perfectly sealed construction and the recombination of gases within the cell. Why would you buy an NP Series Lead-Acid battery?. The NP series offers a unique electrolyte suspension system incorporating a microfine glass mat (AGM) to retain the maximum amount of electrolyte in the cells. The valve regulated design of this battery is equipped with a safe low-pressure venting system, which releases excess gases and automatically reseals should there be a build-up of gas within the battery due to overcharging. Features ; Benefits. Sealed Lead-acid batteries (SLA) Rechargeable Five years designed service life 1.2 Ah - 65 Ah capacities Voltage:6V,12V options Incorporates a pressure safety valve Absorbed Glass Matt (AGM) technology with no free acid Superb recovery from deep discharge Gas recombination technology Lead calcium for extended life Useable in any orientation (except continuously inverted) Compatible chargers available separately. Terminal Types. Faston M5, M6 threaded. Rechargeable 6V Options. NP1.2-6RS: 1.2 Ah, RS stock no: ; 597-784 597-784 NP10-6RS: N10 Ah, RS stock no: ; 597-790 597-790 NP2.8-6RS: 2.8 Ah, RS stock no: ; 814-821 814-821 NP4-6RS: 4 Ah, RS stock no: ; 815-329 815-329 NP7-6RS: 7 Ah, RS stock no: ; 128-7359 128-7359 NP12-6L: 12 Ah, RS stock no: ; 180-9145 180-9145 NPL130-6IFR: 130 Ah, RS stock no: ; 410-1517 410-1517. Rechargeable 12V Options. NP1.2-12: 1.2 Ah, RS stock no: ; 597-807 597-807 NP2.1-12: 2.1 Ah, RS stock no: ; 597-813 597-813 NP7-12: 7 Ah, RS stock no: ; 597-835 597-835 NP12-12: 12 Ah, RS stock no: ; 597-841 597-841 NP24-12I: 24 Ah, RS stock no: ; 597-857 597-857 NP38-12I: 38 Ah, RS stock no: ; 597-863 597-863 NP2.3-12: 2.3 Ah, RS stock no: ; 128-7028 128-7028 NP65-12I: 65 Ah, RS stock no: ; 128-7393 128-7393 NP4-12: 4 Ah, RS stock no: ; 198-8068 198-8068 NP17-12I: 17 Ah, RS stock no: ; 200-6505 200-6505 NPH5-12: 5.1 Ah, RS stock no: ; 320-4508 320-4508 PE2.7-12 / NP2.7-12: 2.7 Ah, RS stock no: ; 511-3476 511-3476 NP10-12: 10 Ah, RS stock no: ; 410-1501 410-1501. Typical Applications. It can be used in any orientation except in a continuous inverted position. Designed for industrial use as float or standby power applications such as; Alarm systems Communications equipment Control equipment Emergency lighting systems Medical equipment Solar power systems Uninterruptible power supplies. FAQ's. GEL Vs AGM Lead Acid Batteries. ;I>Absorbed Glass Mat ;/I> These batteries contain only enough liquid to keep the specially designed glass mat wet. The glass mat is made to wick the battery electrolytes between the battery plates. If the battery is broken no free liquid leaks out. AGM batteries are preferred when a larger number of amps are required. The life expectancy remains excellent in most cases if they are not discharged more than 60% between recharges and/or recharged fully every 3-6 months. ;I>Gel Cell Batteries ;/I> These batteries contain silica type gel, which is a thick paste-like material. It allows the electrons to flow between plates but will not leak in a gel battery if the case is broken. Gel Cell Batteries don't offer the same power capacity as per the same physical size as AGM batteries. Gel cell batteries excel in slow discharge rates and slightly higher operating temperatures and with excellent deep cycle capability. Recharging these batteries must be done correctly or it will suffer premature failure. Is a lead Acid Rechargeable Battery Harmful?. Lead-Acid batteries contain chemicals that have the potential to be harmful to both your health and the environment. They contain lead which is a highly toxic metal and sulfuric acid which is a corrosive electrolyte solution. Proper handling procedures must be followed always. What state of charge will the battery be in when delivered?. The NP Range will have 90% to 95% of charge approximately, we do recommend charging prior to use. How to dispose of Lead Acid Batteries?. Lead acid batteries do contain hazardous chemicals, so recycling is the only way to dispose of them. Recycle responsibly. A wide range of schemes are available.