It's a China knock off charger.. They are available for everything from Kenwood to Icom to Motorola.. None are actual "Branded" items.. The H/L is High rate Vs. Low Rate (trickle) charge.. THEY ARE NOT VERY RELIABLE so be careful with unattended operation.
PSR800 2 , PSR600, PSR500, PRO2096, PRO106, BCD 296D P25 card, Commercial FCC license, Ham General, FAA Private Pilot, Business Owner, APCO Certified Tech.