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Equipped with device to avoid overcharge, over release, short circuit, over loading and solar battery inversely connecting. Adopts PWM main charging circuit of tandem type to effectively improve charging efficiency. The LED indicator shows the batteries current situation to make the customer get the information of the batteries. Use the battery discharge rate characteristics to correct discharge control. To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.







