1. A photo voltaic charge controller is an integral a part of a photo voltaic system and is described because the ‘heart’ of the solar set up. They ensure the battery is protected and charged and power is harvested from the photo voltaic array.
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3. Lithium batteries are a brand new addition to solar PV market with Lead acid batteries having been the go to batteries for solar system. Lithium batteries are built different. They are light yet dense, fast charging, present a relentless voltage and final longer making it your most popular choice for storing power
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5. As a result of Lithium batteries are charged otherwise from Lead Acid batteries they require totally different set up in charge controllers. Cost controllers normally come with predefined settings for Sealed, AGM and Gel batteries however none have really include settings for lithium phosphate batteries.
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7.  Custom Lithium Battery Manufacturers may not need ‘special’ controllers simply because you're utilizing a lithium batteries. Any controller which lets you enter custom settings (which you get from the battery manufacturer) will work.
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10. Isn’t the Battery Protection Circuit enough?
11. Lithium batteries are made up of cells that can be safely charged to 4.1 V or 4.2 V per cell and never larger. They should not also be discharged too rapidly and are utterly empty when discharged to 2.5 V per cell.
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13. Overcharging the battery will damage the battery and can create a fireplace hazard, discharging a lithium battery too low reduces the cell lifetime.
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15. A Lithium battery has an inbuilt battery safety circuit that prevents overcharging, over-discharging and discharging too shortly by the load. And that’s as far because it goes.
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18. Why you still want a Cost Controller for Lithium Batteries
19. So this question is requested fairly often. If I've this battery safety in lithium batteries why do I need a cost controller in my photo voltaic system?
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21. A charge controller and the battery safety circuit have an overlap function of defending the battery from overcharging. But that’s the place it ends. A cost controller mains function is to regulate the voltage from the solar panels and make sure the battery is being charged.
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23. The Open Circuit Voltage from the Photo voltaic panels is irregular and changes in keeping with sunlight. The work of the controller is to carry down this voltage to your batteries voltage and make sure the battery is charged.
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25. Charge controllers typically have bulk, absorption and float battery charging phases. Bulk is where the total power of the panels is used to cost the battery, absorption is where just a little power trickles in and float is simply to maintain the battery topped off.
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28. Setting your Charge Controller for Lithium Batteries
29. Lithium Batteries might simply use bulk mode until a target voltage is achieved. Chances are you'll set for absorption mode for a couple of minutes before going to float. But it surely is feasible to go straight from Bulk to float.
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31. The fundamental is to make sure the majority voltage is ready at around 14.4V, 14.6 for the absorption stage and 13.5 or 13.6 for float.
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34. But every battery ought to come with specifications from the manufacturer:
35. An Instance for the Renogy LFP Batteries:
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37. Standard Charge shall consist of charging at 0.2C constant current price till the battery reaches 14.6V. The battery shall then be charged at a continuing voltage of 14.6V whereas tapering the cost present. Charging will terminate when the charging current has tapered to a 0.02CA. Charge Time is approximately 7 hours. Safe Charging consists of temperatures between 32 ºF and 113 ºF. Battery Normal Discharge is constant present of 0.2C to 10V.
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39. Additionally make sure that to show off Temperature compensation and Equalization options as these settings should not required for lithium batteries.
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42. Battery Charging Parameters for lithium batteries
43. Make sure you check with manufacturers recommend parameters for your battery.
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46. Awakening a Dead Lithium Battery with a Charge Controller
47. While you retailer a lithium battery pack in a discharged state for a protracted time period self-discharge slowly depletes any remaining cost in the battery. The safety circuit will flip off in this case making the battery unusable.
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49. Some MPPT charge controllers just like the Renogy rover have a reactivation function to awaken this ‘sleeping’ lithium battery. It does this by applying a small cost current to activate the protection circuit and when a correct cell voltage is reached it then starts a traditional cost ‘waking up the battery’.
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52. Victron SmartSolar Cost Controller
53. The Victron Cost Controller is a Premium Selection for PV Offgrid systems. With choices of as much as a hundred amps and 250V that is the safest wager if you end up planning to persistently add panels to your system.
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55. This is by far the perfect MPPT cost controllers for lithium batteries. It could possibly precisely track charging voltage to two decimal points.
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57. It has a friendly user interface that you connect it with your telephone via the Bluetooth module. It has pre- programmed settings for SLA and Gel batteries and for lithium batteries you’ll need to set customized parameters. You’ll just need to go to the settings and set the battery’s parameters as suggest by the manufacture.
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60. EPEVER MPPT Solar Charge Controller
61. The Epever Tracer Collection charge controllers are probably the most dependable MPPT controllers available in the market. Constructed with a die forged aluminum design which acts as a heat sink it could actually easily dissipate heat from the controller and won’t heat up quickly.
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63. It has a pleasant backlit LCD Display that displays the Photo voltaic panel current and voltage and the battery voltage and present. Nonetheless if you are to enter custom settings you will want a with a MT-50 Distant Display that lets you set custom settings.
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65. The controller will help you set person settings for the battery in accordance with the parameters specified by the manufacturer. However there is one essential setting you should remember; set the boost voltage high to make sure charging when the sun comes up.
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68. Renogy Rover Charge Controller
69. The Renogy Rover is a cost controller is a person friendly controller made for custom use. It's an easy to put in controller that comes with a helpful information from Renogy. The LCD Display reveals how the system is performing and means that you can enter your settings proper from the controller.
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71. Just like the Victron it additionally comes with a Bluetooth module that enables you to trace efficiency and make adjustments remotely. It has a “USER” mode that allows you to enter customized settings that embody (Over-discharge voltage, over-discharge return voltage, Boost Voltage and Floating Charging voltage.
72. My website: https://npplithium.com/