Thomas & Betts 20D, 15D owner manual Battery charger stages are

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BATTERY CHARGING

NOTE: Freedom battery chargers are ON whenever AC power is connected to the charger input. The charger can be turned OFF using the CHARGE switch on the front of the unit. This sequence will occur each time external AC power is available. The charger can be turned ON/OFF using the Remote Control Panel or Link Instrumentation.

Each time the battery charger is engaged, the 3-stage charger proceeds automatically, resulting in an efficient complete charge and safe battery maintenance. Use of the Remote Control Panel or Link Instrument provides the ability to periodically apply an equalizing charge.

Refer to Remote Control Panel or the Link Instrument Owner’s Manual for more information.

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The battery charger stages are:

Stage 1 - Bulk Charge During the bulk charge stage most of the energy that has been consumed during discharge is returned to the battery bank. This phase is engaged as soon as the battery charger is activated. Full rated charger current is delivered to the battery bank until the bulk charge voltage limit is reached. This results in a relatively rapid recharge.

Generally, a wet cell battery bank should not be charged at a rate which exceeds 25% of its capacity.

Part No. 90-0123-00 Libertycombi.p65 10/26/98

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Contents INVERTER/CHARGER Safety Summary Table of Contents Introduction Freedom 15 & 15D Watts Freedom 20 & 20DFreedom 15 & 15D Amps DC Freedom 20 & 20D Electronic ProtectionThings YOU should Know 15D 20DTemperature Sensitive Charging External AC Power Front Panel Controls and IndicatorsInvert Mode Charge ModeBattery Type Selection LOW Battery Red LEDStatus LEDs Operation StatusTSC Temperature Sensitive Charging LOW Battery & OVERTEMP/OVERLOADOptional Remotes Remote Control Panel Advanced Remote Control Panels Link InstrumentLink Link 2000RWet Cell Batteries Battery TypesQuality deep-cycle batteries offer good Battery Interconnection BatteriesParallel Battery Bank Ratings and SizingOnly similar batteries should be Typical Power Consumptlon AMP-HOUR Consumption FormulasBattery Charging Battery ChargingFreedom Battery Chargers Battery charger stages are Acceptance to Float Transition Points Battery Charging Battery Charging Battery Charger Voltage Settings Installation Precautions Unvented compartments containingConfirm that your shipping carton contains Typical Tools NeededInstallation Auxiliary Switch Port Jumper Grounding Neutral BondingInstallation AC WiringGround Fault Circult Interrupters DC WiringPathMaker Models Battery Cable Fusing Recommended Fuse UL Listed Class TInstallation Test the transfer functionTest the battery charger function Troubleshooting LED Status Troubleshooting Glossary LED Light Emitting Diode Indicator light Specifications Warranty Phone numbers 253