Just another solar setup inquiry sorry about this but brain has frozen

Submitted: Saturday, Aug 09, 2014 at 17:11
ThreadID: 109084 Views:2534 Replies:3 FollowUps:4
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over so here goes I have put 120 watt folding panel {regulator removed} plus a 110watt panel on the roof of the towtug and ran the wiring from each setup separately to the regulator joined them in parallel and connected them to the regulator MPPT30 {CHEAP CHINESE UNKNOWN BRAND}.This charges a 105 amphour full river battery which in turn runs the 60 litre Trailblaza no real problems battery is fully charged and in float mode by early afternoon each sunny day.The system runs independently of towtug unless I close onto it.The inquiry is that I have never seen the charging rate over 8 amps mostly 6-7amps and I expected to see 11-12 amps.Am I missing something in the world of 12 volt DC. the facts that I can give are as follows in the morning before sunup the battery volts are around 11.8 - 12.2 volts open circuit on110watt panel {middadish}20.1 volts on 120watt 19.3volts and combined20.0 volts. On 110 watt panel under load[4.8amps] charge rate 4.2amps at 12.7volts. On 120watt panel under load[4.7amps] charge rate 3.2 amps at 12.3 volts battery charge. Could the low charging rate be because the battery still has plenty of chage in it at sunup? Thanking you all for any help forthcoming Mickb
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