LadyG 434 Report post #1 Posted December 1 (edited) I 'm getting 2 new 275w panels wired to the leisure batteries and keep a small [old], panel for the starter. I will sell two small second panels, wondering if I should sell the old controller and get a better one, eg https://www.midlandchandlers.co.uk/products/victron-bluesolar-pwm-pro-12-24v-10a-vv-100 - does this standalone? Edited December 1 by LadyG Share this post Link to post Share on other sites
Alan de Enfield 4410 Report post #2 Posted December 1 10 minutes ago, LadyG said: I 'm getting 2 new 275w panels wired to the leisure batteries and keep a small [old], panel for the starter. I will sell two small second panels, wondering if I should sell the old controller and get a better one, eg https://www.midlandchandlers.co.uk/products/victron-bluesolar-pwm-pro-12-24v-10a-vv-100 - does this standalone? First of all DO NOT buy a PWM controller. PWM are very inefficient. Buy an MPPT which achieves approx. 30% more power from the same panels. Secondly 2x 275 watt panels are capable of producing 40+ amps, a 10a controller will not last very long. Share this post Link to post Share on other sites
LadyG 434 Report post #3 Posted December 2 (edited) 5 hours ago, Alan de Enfield said: First of all DO NOT buy a PWM controller. PWM are very inefficient. Buy an MPPT which achieves approx. 30% more power from the same panels. Secondly 2x 275 watt panels are capable of producing 40+ amps, a 10a controller will not last very long. OK, Electrician wants to hitch one [of three] existing [old] small panels to existing controller, and my new 550w to my new 40 amp controller. So I am left with two [old] small panels to sell. I thought I would sell the existing [old] controller and get a new one, looking for a Mppt 10 amp [I think] UPDATE I see Bimble sell a dual battery [Batt1, Batt2] controller but not one rated at 55 amps. Any comments? Edited December 2 by LadyG Share this post Link to post Share on other sites
Onewheeler 54 Report post #4 Posted December 2 10 hours ago, Alan de Enfield said: First of all DO NOT buy a PWM Secondly 2x 275 watt panels are capable of producing 40+ amps, a 10a controller will not last very long. A 10 A controller should work but it will only deliver 10 A. It's excess input voltage which will destroy it. Definitely a MPPT controller though. Share this post Link to post Share on other sites
LadyG 434 Report post #5 Posted December 2 10 hours ago, Onewheeler said: A 10 A controller should work but it will only deliver 10 A. It's excess input voltage which will destroy it. Definitely a MPPT controller though. see my post above, its a two controller system Share this post Link to post Share on other sites
bizzard 1931 Report post #6 Posted December 2 18 minutes ago, LadyG said: see my post above, its a two controller system A fat one like this ? 1 Share this post Link to post Share on other sites
