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EPower 20 Amp 12 volt Battery Charger


EPower 20 Amp 12 volt Battery Charger designed as a smart charger with up to 3 banks of batteries that can be connected at any one time.

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    SKU: BC0310 Category:

    Enerdrive ePOWER Battery Chargers are available in the following models: 12Volt / 20amp – 40amp – 60amp – 120amp* (2 x 60amp units) 24Volt / 30amp – 60amp* (2 x 30amp units) Features 60A Battery Charger Features: Multistage Charging: Fully automatic multistage battery charger with the ability to charge 3 separate battery banks. Separate Battery Banks: Isolated charging design where battery bank one is separate from battery bank two and three. Programmable: Battery bank 1 can be programmed with a different charge algorithm over banks 2 and 3. Current Control: User adjustable current output (e.g. Dial the 60amp unit back to run off a 1kVA generator). Smart Charging: The ePOWER 60A battery charger will regulate its output based on the loads connected to your battery banks. Wide AC Input Range: Operates on both 110V / 60Hz and 240V / 50Hz. LED Display: Easy to use “set and select” menu along with scrolling charger status. Silent Mode: Disables the cooling fan for total silent operation at night or whenever required. Activation reduces charge output by half and locks out fan for 12 hours. Temperature Sensor: Battery temperature sensor included with 3 meter cable. 2 Year Warranty from an Australian company renowned for customer support. Multistage Charging Process The Enerdrive ePOWER 20A Battery Charger is a fully automatic, “set and forget” charger. It is designed to quickly and accurately recharge your batteries using algorithms that help maximise service life. Multistage smart charging technology enables the charger to be connected to your battery banks permanently. As dictated by battery manufacturer’s recommendations, batteries require a multistage charge sequence for perfect, fast and accurate charging. Our ePOWER multistage smart 60A battery chargers deliver four primary charge stages:- Stage 1 – Bulk or Boost Charge; The battery is charged at full rated output current of the charger until the battery reaches its final charging voltage, known as its absorption voltage. In this step, around 80% of the battery capacity is recovered as fast as possible. Stage 2 – Absorption Charge; With the charger voltage held steady the remaining 20% is replaced allowing the current to drop as the battery approaches its full charge. Stage 3 – Float; Finally, in the float stage the charger voltage is lowered and held at a constant and safe predetermined level. This prevents the battery from being overcharged while supporting any additional loads connected to the battery, such as DC lighting and refrigerators. This stage allows for the charger to be used as a DC power supply. Stage 4 – Maintenance; This stage is a regular timed “return to bulk” stage. After 7 days of constant operation in “float” the Enerdrive ePOWER 60A Battery Charger will switch the charger from float to bulk to agitate the batteries electrolyte helping to provide an extended service life. Bank 1 PRIORITY – Charge Where You Need it Most The ePOWER 60A Battery Charger delivers a priority charge to Bank 1, or your main house battery bank which allows the charger to get this bank recharged the quickest, then transition the cycle to the lesser bank 2 & 3 batteries.   The priority function also allows you to have a battery chemistry different to the other two, such as an AGM battery for house and lead calcium for your start banks. In the event that all 3 banks are in need of a charge, an over-ride function helps recover all 3 banks quickly and evenly before switching back to prioritise on Bank 1. It’s All About Lithium The recent advances in high capacity Lithium battery technology have seen the need to develop a battery charger suited to their needs. With most traditional ‘smart’ chargers their suitability to Lithium batteries is limited. Lithium batteries require a constant current / constant voltage charge algorithm and are unique in that almost every amp-hour of charge delivered by the charger is accepted as one amp hour into the battery, hence the need to deliver a constant current as long as possible. The Enerdrive ePOWER charger can be programmed for Lithium batteries. This setting delivers the full rated output of the charger constantly with the charger switching to power supply mode once the voltage peak is met (indicating a full battery bank). The graph below shows the ePOWER charger algorithm perfectly supporting Lithium battery requirements.     The Display Panel The ePOWER 20A Battery Charger display gives you all the information you need for the operation of your charger. At a glance, key information such as charger amps, battery voltage and charge state continually alternate on the screen.When in float / power supply mode, the load amps are displayed so you can see exactly what the charger is doing. The display also allows you to program all settings of the charger, as well as activate the silent mode. Silence when you need it – By pressing the “SEL” button for 5 seconds, the ePOWER Charger enters the ‘Silent’ mode that prohibits the fan from working. This ensures totally silent and safe operation at night, ideal if the charger is located close to your sleeping quarters. Silent mode limits current output to no more than 50%, and is programmed to remain on for 12 hours before automatically returning to a normal ‘fan-on & full output’ settings.  Battery Temperature Sensor Included standard with all ePOWER Battery Chargers Specifications Enerdrive ePOWER Battery Charger Specifications ModelEN31220EN31240EN31260EN32430 Note: Specifications subject to change without notice. CHARGER OUTPUT Output Current (Maximum) 20A 40A 60A 30A OUTPUT VOLTAGE RANGE Charge 14.2 – 15.5 V 28.4 – 31.0V Float 13.4 – 13.8 V 26.8 – 27.6V – Equalize 16.0 V 32.0V Charging Control Four stages (Bulk/Absorption/Float/Maintenance)   Two stages (Bulk/Absorption)   Constant Power Supply (Program setting)   Priority Battery Bank Charging DC Output Bank Three (1 fully independent, 2 common with diode isolation) Selectable Battery Type Gel, AGM, Flooded, Lithium, Program Standby Current < 2 mA CHARGER INPUT AC Input Voltage (Nominal) 90 to 265 VAC AC Input Operating Range 207-265 Vac (2.0 A Max)90-125 Vac (3.8 A Max) 207-265 Vac (3.8 A Max)90 – 125 Vac (7.7 A Max) 207-265 Vac (5.9 A Max)90-125 Vac (11.3 A Max) 207-265 Vac (5.9 A Max)90-125 Vac (11.3 A Max) AC Input Frequency Range 47 – 63 Hz Power Consumption 350W (Full Load) 700W (Full Load) 1050W (Full Load) 1050W (Full Load) Power Factor Correction Yes Charger Efficiency > 82% PROTECTION AND FEATURES Reverse Polarity Yes, (with user replaceable fuse/s) Over Charge Yes, unit shutdown Over Temperature Yes, unit de-rated and shutdown Output Short Circuit Yes, (with user replaceable fuse/s) Cooling Forced air ventilation (thermo controlled fan) Temperature Setting Hot, Normal, Cold (no sensor connected) Battery Temp Sensor Port RJ12 (standard battery temp. sensor supplied) DISPLAY LCD Display (with back light) Charging status, Battery Voltage, Output Current & Fault Codes. AC INPUT AND DC OUTPUT CONNECTION AC Input Connection IEC with Supplied 1.2M Power Lead DC Output Connection Heavy Duty Terminal (3 banks) – Pan Heads 6mm Thread DC Output Ground Single Heavy Duty Common Ground Stud ENVIRONMENTAL AND OPERATING TEMPERATURE Storage Range -40° to 70° C Operating Range -20° to 60° C Humidity 5-95%, relative humidity non-condensing Ingress Protection IP32 (Basic drip proof in vertical orientation) Base Unit Weight and Dimensions Weight: (kg) 2.4 2.6 4.0 4.0 Dimension: (mm) L x W x H 295 x 206 x 86 295 x 206 x 86 356 x 206 x 99 356 x 206 x 99 Optional Accessories Remote Digital Display / Enerdrive Part Number EN3REM Regulatory Compliance Complies with AS/NZS 60335.2.29 Including Australian deviations. Tech tip for charging a flat battery   How to Charge a flat battery with an ePOWER charger.   Using an ePOWER charger to recover a battery below 3.5vdc.   The ePOWER charger is designed to recharge and maintain a deep cycle battery to the best of its capabilities in normal operating conditions. There however is the rare occurrence when a battery may be discharged well below its safe levels and require recharging, of which the ePOWER in normal charge mode needs greater than 3.5 volts DC to activate the Micro Processor to start the charger.   For a conventional 12 volt deep cycle battery to be discharged well below 9vdc can cause numerous issues while recharging, with the greatest risk of a cell collapsing or a thermal runaway event occuring. Its absolutely imperative as an owner of deep cycle batteries that you DONT let your batteries fall below 9volts. Discharging a battery past 9vdc will severely shorten the life of the battery, if not cause it to be irrecoverable if voltages reach as low as 1 or even 0VDC.   The ePOWER Charger has a function that allows you to safely rejuvenate the battery if no internal damage has occurred. By applying a constant voltage and a lower charge rate for a number of hours, the likelihood of battery damage while recharging is greatly reduced.   Should you ever have a battery fall to levels that the ePOWER will not support, simply do the following;   STEP 1: HOLD MENU button until battery type is Flashing.   STEP 2: PRESS SEL button until battery type PROGRAM is Flashing.   STEP 3: PRESS SET to set the Charger into PROGRAM (Power Supply Mode).   STEP 4: The Voltage will show 13.3V It doesn’t matter which one its is on, just PRESS SET to select and move on.   Step 5: The screen will show Amps, PRESS SEL to change it to 5A and PRESS SET to Select it.   Step 6: HOLD MENU button till you return to the main screen.   We recommend that the battery be maintained in a power supply stage for at least 12—24hours for the best possible recovery of the battery (but don’t leave the charger turned on overnight) This will let the battery slowly absorb the voltage and amps and help to keep any damage casued to the battery to a minimum. While in this re-charge phase, we do not recommend any loads to be operated until the battery is ready for the charger to be switched back to charging mode.       WARNING!   If your battery is showing any signs of bulging or overheating, shut down the system and get your battery checked by a professional.       Step 7: After your battery has had time to recover change your battery type settings back to suit your battery and continue charging as normal. This can be done by following the next to steps. (Step 8 to 11)   STEP 8: HOLD MENU button until battery type is Flashing.   STEP 9: PRESS SEL button until battery type that suits your batteries is Flashing.   STEP 10: PRESS SET to set the Charger into desired battery type   STEP 11: PRESS MENU to return to the main screen       CAUTION.   When you return the ePOWER charger back to normal 3 stage mode after a dead flat battery be sure to monitor the battery for any signs of heat build-up or excessive gassing. If the battery does not recover after the return to bulk phase has been completed please contact your local battery supplier for a more detailed battery test.   SUGGESTED TIP – To prevent low voltage conditions occurring, consider installing a low battery cut out in your system. This can be done with either the Enerdrive eLITE battery monitor and external latching relay, or a dedicated low voltage cut out. You mostly need to consider low voltage cutout protection on any circuit that has LED lights included as these will drain your batteries down to zero volts DC if left unattended.  


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