Manual - Orion XS 12/12-50A DC-DC battery charger Bulk During this phase, the Orion XS supplies as much charging current as possible to quickly charge the batteries. Absorption When the battery voltage reaches the absorption voltage setting, the charger switches to constant voltage aka absorption mode. For lead-acid batteries, it is important that the absorption time is kept short during superficial discharges to avoid overcharging the battery. After a deep discharge, the absorption time is automatically increased to ensure that the battery is fully charged again. For lithium batteries, the absorption time is fixed, 2 hours by default.
Fixed or adjustable modes can be selected via the battery settings. Float During this phase, the battery is charged with a trickle charge voltage to keep it in a fully charged state. When the battery voltage drops far below this level, for example, due to a high load for at least 1 minute, a new charge cycle is activated. Storage The battery voltage is maintained at the configured storage voltage, which is slightly reduced compared to the float voltage to minimise gassing and extend battery life whilst the battery is unused and on continuous charge. Flexible charge algorithm The Orion XS has fully programmable charge algorithms and eight pre-programmed battery settings.
Configurable with VictronConnect. Adaptive Absorption Time In adaptive absorption time mode, the correct absorption time is calculated automatically. Configurable with VictronConnect. Repeated Absorption To refresh the battery and prevent slow self-discharge while in storage stage over an extended period, a 1-hour absorption charge will automatically occur every 7 days (or as configured). Temperature-compensated charging The optimum charge voltage of a lead-acid battery is inversely proportional to temperature. The Orion XS measures the ambient temperature at the start of the charging phase and compensates for the temperature during charging.
The temperature is measured again when the battery charger is in low current mode during absorption or storage. Special settings for a cold or warm environment are therefore not required. Adjustable charge current The charge current is adjustable with a minimum step size of 0,1 A. Configurable with VictronConnect. Low-temperature shutdown Prevents damage to lithium batteries by turning off the charger at low temperatures. Configurable with VictronConnect. Input voltage lock-out Shut down the charger when the input voltage falls below the lock-out value and restart when the input voltage rises above the restart value. Configurable with VictronConnect.
Remote On/Off The Orion XS can be switched on and off remotely via the remote on/off connector or the VictronConnect App. Typical applications include a wired switch or a lithium battery with a Battery Management System (BMS) that has an ATC (allowed to charge) output. DVCC controlled The Orion XS can be DVCC controlled via a GX device, provided it is connected to the GX device via the VE.Direct port and the Orion is switched to charger mode (there is no DVCC control when the Orion XS is in power supply mode). Charging currents and voltages are then set automatically; thus, the internal bulk, absorption, and float algorithms are no longer used.
Charging or discharging are stopped at low or high cell voltage or low temperature. Note that when the Orion XS is configured as a charger and DVCC is enabled on the GX system, the output of the Orion XS must be connected to the main battery controlled by the GX system. The reason for this is that the GX system manages the Orion XS by synchronising its charging state with that of the main battery. If the output is instead connected to a secondary battery, one of the following actions must be taken: 1. Disable DVCC on the GX system. 2. Disconnect the Orion XS VE.Direct connection from the GX system. 3. Set the Orion XS to power supply mode.
In this mode, the Orion XS outputs a fixed voltage and no longer follows a charge cycle. For more details about DVCC, please see the GX device manual. Page 3 General