"PRL 1010, PRL1515, PRL2020, PRL3030,PRL245 The Fangpusun PRL10-45 series of charge controllers is the highlight in ... the range. The lates charging technologies, combined with a Fangpusun AtonIC state of charge determination which has been significantly improved ... meter which can be reset by the user." http://www.fangpusun.com/