PT-25W Battery ChargerNewmar&';s Phase Three Series Battery Chargers employ "Smart" battery charging technology for 12-volt systems aboard marine applications including workboats, military vessels, commercial vessels, and recreational craft. This charger interacts with batteries, providing the optimum three-stage charge process for fast recovery and conditioning, maximizing performance, and extending battery life.A selector switch adjusts output voltage to adapt to gel-cell, flooded lead-acid, or AGM battery types. An optional temperature compensation sensor also adjusts output for ideal voltage based on changes in the batteries&'; ambient temperature. This model is housed in a rugged stainless steel case with a durable white powder coat finish, and the internal circuitry is polyurethane coated for maximum corrosion resistance.Features: 12-volt model "Smart" circuitry provides three-stage charging - bulk, absorption, and float Gel-Cell/Flooded Lead-acid/AGM battery type switch selects optimum charge/float voltages Multiple isolated output banks; ammeter indicates total output current. (Except PT-7) The optional sensor adjusts the output voltage based on battery temperature. (Except PT-7) Current limitations prevent damage from overloading Clean well-regulated output can be used as a power supply; can power loads directly without a battery in line Built to last - rugged stainless steel case with a durable white powder coat finish, an optional drip shield, and marinized internal circuitry Protection: Current Limiting, Thermal Protection, Forced Air Cooling, Drip Shield ABS-type approval for battery charging and power supplies Specifications: Input VAC (50-60 Hz.): 90-132 or 180-264 Input Amps @ Full Load: @ 115 VAC: 6.5, @ 230 VAC: 4 Power Factor: .7 Max Output Amps: 25 Output Banks: 3 Battery Capacity (Amp-Hours): 50-250 Operating Temp. Rating Reference: T-4 Case Size Reference: A-2 Case Size (H x W x D): 11.2A x 7.7 x 4.75A inches (31.8A x 19.6 x 12.1A centimeters) *Note with Dripshield installed A add 1.1" (2.8 cm) to height and .92" (2.3 cm) to depth Weight Lbs./Kg: 8.2/4 Optional Temp. Sensor Model: TCS-12/24 Remote Panel Model: RP Equalize Option: Yes Output Indicator Reference: M-3 Compliance Reference: CG Temperature Rating References: Temperature: -20 degrees C to +60 degrees C Derate Linearly From 100% @ 50 degrees C to 60% @ 60 degrees C Nominal Output Voltages at Gel/Flooded Switch Settings (without Temperature Compensation): Gel-Cell: 14.0 VDC Charge @ 50% load and 13.6 VDC Float @ .5 amp load Flooded/AGM: 14.2 VDC Charge @ 50% load and 13.4 VDC Float @ .5 amp load Compliance References: CG: USCG CFR 183.410 (Ignition protected) CE: Carries the CE mark ABS: PT Series meets SVR 2009 4-8-3/5.9, Under 90 meters Rules 2006 4-6-4/7.19, and HSNC 2007 4-8-3/5.13. Options: Remote Panel, model RP, for use with all models except PT-7 and PT-40U (LEDs indicate charger output stage. Manual re-initialization of three-stage charge cycle. With 25 of cable. Panel dimensions: 3" H x 4.75" W) Temperature Compensation Sensor, Model TCS 12/24, for use with all models except PT 7 (-5 mV per cell degrees C, 25 cable (40&';cable optional) This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. Specifications: Charger Input - Voltage: 115/230v Charger Output - Amps: 25a Charger Output Voltage: 12v Charging Banks: 3 Inverter Input Voltage: 115/230v Inverter Output Voltage: 12v Outlet Qty: Hardwire Portable: No Box Dimensions: 10"H x 10"W x 16"L WT: 9.5 lbs Owner&';s Manual (pdf)