The Yuasa 12Ah Batteries VRLA 6Vdc Sealed Lead Acid Battery from the Critical Power Supplies UPS batteries range for use with an uninterruptible power supply or standby power protection system.h2. ApplicationsYuasa NP batteries, having excellent deep discharge recovery characteristics coupled with long life on float standby, are ideal for numerous applications in both cyclic and standby modes. For advice on the use of NP batteries in your particular application please contact our Sales Office.h2. Charging For Float Standby ApplicationsCharged at 2.275 volts per cell continuous. The battery will seek its own current level and float fully charged. However, users should be aware that when charging from fully discharged, the battery can draw an initial charge current of approximately 2cA. Care should therefore be taken to ensure that this initial charge current (if ungoverned) is within the output capability of the equipment. Final charge current at 2.275 volts per cell is typically between 0.0005cA to 0.004cA.Charging For Cyclic ApplicationsSee cyclic recharge regime graph.h2. CAUTION- Do not Short Circuit- Do not charge in a sealed container- Service life and operational characteristics will be affected by temperature- AC Ripple reduces service life.