Absorbed Glass Mat (AGM) is a type of maintenance-free, valve-regulated lead acid battery (VRLA). These batteries have the electrolyte held in glass mats, as opposed to flooded around the lead plates. AGM cells generally have a higher power density than standard ‘flooded’ lead acid cells. Consult with the battery manufacturer for proper charging voltages.

Traditional PWM vs Morningstar’s TrakStar™ MPPT Technology

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TriStar MPPT Processor A Firmware Update

v32b Firmware and above addresses EEprom access bugfix causing watchdog trip and subsequent lowside FET turn on.  This issue is generally limited to Controllers installed in applications utilizing all, or most, of the following items in the design.  -High I/O of Communications, -Read/Write of vb_ref register (0x0033), -Read/Write of ib_ref register (0x0058), -Write of battery current limit (0xE01D), -Coil command restart of controller, -48V Systems, -Oversized Arrays.  The following link provides instructions on updating firmware:   https://www.youtube.com/watch?v=J6Duwr5Tl-w&t=10s

 

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