Key Performance BenefitsProgrammable Output from 43.5 to 57.6 VDC — Output voltage is set in software, so the charging profile can match the battery maker's specification instead of a fixed factory value.Float and Boost Charging Profiles — The module supports both standby float voltage and elevated recharge voltage, and returns to float automatically when the recharge completes.Temperature-Compensated Charging Support — Coordinated through the Smartpack controller, charge voltage tracks battery temperature to avoid overcharging in warm cabinets and undercharging in cold ones.>96.2% Conversion Efficiency — High-efficiency HE topology reduces the heat that accelerates battery aging in enclosed cabinets.41.7A Output at 48V — Delivers 2000W at nominal input, matching the recharge current needs of mid-size 48V strings without over-sizing the shelf.85-300 VAC Input Window — Maintains charging current through brownouts and generator transfers, so a depleted string is not left partially recharged.Hot-Swap Module Replacement — A module can be exchanged while the DC bus stays live, preserving the charging path during service work.Technical SpecificationsTechnical IndicatorSpecification Detail (PN: 241115.105)Rated Output Power2000W at >185 VAC / 850W at 85 VACOutput Voltage Range43.5 - 57.6 VDC (Default 53.5 VDC)Maximum Output Current41.7 A at 48 VDCAC Input Window85 - 300 VAC (Nominal 185 - 275 VAC)Conversion Efficiency>96.2% (High Efficiency HE)Operating Temperature-40°C to +75°C (Linear derating above +55°C)Control InterfaceSmartpack controller integration with digital health monitoring241115.105: Charging Voltage as the Variable That Decides Battery LifeBattery strings rarely fail because of a single catastrophic event; they drift out of specification through years of charging at a voltage that is slightly wrong for the site's temperature.A float voltage set too high accelerates grid corrosion and water loss, while one set too low leaves the string undercharged and vulnerable to sulfation.Because those effects take years to surface, the fault is usually discovered only when a capacity test reveals that runtime has quietly eroded.The Eltek Flatpack2 241115.105 allows output voltage to be programmed anywhere between 43.5 and 57.6 VDC, so the setting can be matched to the battery maker's published curve.Working with the Smartpack controller, the rectifier supports float and boost profiles and returns to float once recharge current tapers, avoiding prolonged overvoltage.Temperature-compensated charging removes the seasonal error that affects sites without climate control, where cabinet temperatures vary widely between winter and summer.At >96.2% efficiency, the module adds less heat to the cabinet, which in turn reduces the thermal stress that shortens battery service life in the first place.For operators with mixed battery vendors across a portfolio, the programmable profile avoids stocking different rectifier variants for each string specification.Specifying the Eltek Flatpack2 241115.105 for 48V DC plants gives operators direct control over the single parameter that governs battery economics. Programmable voltage, coordinated float and boost profiles, and temperature compensation keep strings inside their designed operating envelope across climates and seasons. Efficiency above 96.2% limits cabinet heat, so the charging path does not contribute to the aging it is meant to manage. For network operators budgeting deferred battery replacement and predictable runtime, the 241115.105 turns charging control into an engineering decision rather than a factory default.Technical FAQQ: Is temperature compensation configured in the module or in the controller?A: Charge voltage management is coordinated through the Smartpack controller, which adjusts the rectifier output based on battery temperature input; the exact slope depends on the battery manufacturer's recommendation.Q: Can the 241115.105 recharge a fully depleted string on its own?A: A single module delivers 41.7A at 48V, so recharge capability depends on string capacity and the number of modules installed; parallel modules increase available recharge current.

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