![]() Other battery types cannot withstand over-charging, becoming damaged (reduced capacity, reduced lifetime), over heating or even exploding. Other battery types use a timer to cut off when charging should be complete. Simple chargers of this type must be manually disconnected at the end of the charge cycle. ![]() Some battery types have high tolerance for overcharging (i.e., continued charging after the battery has been fully charged) and can be recharged by connection to a constant voltage source or a constant current source, depending on battery type. The charging protocol (how much voltage or current for how long, and what to do when charging is complete) depends on the size and type of the battery being charged. This revision also adds a potentiometer to the input to set the holding voltage for MPPT and we've also tweeked the feedback resistors on the output to change the float voltage.Ī battery charger, or recharger, is a device that stores energy in a battery by running an electric current through it. It’s recommended that batteries not be charged at greater than their capacity rating thus, the smallest battery that should be charged with the Sunny Buddy is 450mAh.Įach Sunny Buddy comes equipped with a LT3652 power tracking 2A battery charging circuit and pre-installed barrel jack and 2-pin JST connectors with unpopulated areas to install your own personal 3.5mm screw terminals for added input/output options. By default, the Sunny Buddy comes set to a maximum charge current of 450mA with a maximum recommended input of 20V (minimum 6V). The load should be connected in parallel with the battery. ![]() The output of the Sunny Buddy is intended to charge a single polymer lithium ion cell. Set-up is easy as well, just plug your solar panel into one side of the Sunny Buddy and your battery into the other and you are good to start charging! This MPPT solar charger provide you with the ability to get the most possible power out of your solar panel or other photovoltaic device and into a rechargable LiPo battery. This is the Sunny Buddy, a maximum power point tracking (MPPT) solar charger for single-cell LiPo batteries.
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