how many watts of solar power can this unit take to charge batteries in parallel or in series?
1075036
From the Battery Tender site.(http://batterytender.com/products/solar/battery-tender-solar-controller.html)Battery Tender® Solar Controller allows you to convert an existing solar panel into a solar charger using Battery Tender® patented Super Smart Charging Algorithm. Usable input range between 5-45 Watts!
1075037
I use a 10 watt solar panel to maintain my two 12 volt deep cycle travel trailer batteries with a battery tender monitoring the charge. The batteries are always fully charged and ready to go when I am.
186982
If the input states DC 15V-24V/2A that is alot (15V x 2A = 30W to 24V x 2A = 48W) which is too high for this panel, but the 40W (18V 2.2A) Poweradd ($ 200.00) or BixPower/BixNet ($ 190.00) solar panels (or any other fixed or portable solar panel where the Watt output are 40W or above) should be able to charge that battery pack in ideal sunny conditions.
1311913
You can connect at least 8 solar panels of 100watts each and I have 15 deep cycle batteries on that. You need cables mostly and maybe some safety fuses if you want.
1657624
Battery voltage range is up to 72 volts. But you can not connect 4 of those panels in serice since the peak solar voltage is 150v and 4 panels will damage the unit. So better go 2 sets of 2 panels in series/parallel.
54272
I have 820 watts of solar and I have the Morningstar MPPT 45 with 6 batteries and works fine. The mppt 45 will only allow me 45 amps, but if I produce more it will not hurt that controller.
1513643
No. If you need 2000 watts you will need an inverter that puts out 2000 watts. You could connect two inverters to you batteries but not to each other.
1832902
Yes; in full sun one of these 15w panel will produce well over 800 milli amps close to 1 amp. 2 panels like these will double the charge rate and so on. My one panel easily maintains and keeps two 105 amp hour 12v deep cycle flooded batteries fully charge to over 12.6v month after month with about 6-8 hrs of full sun.
1311912
You need to connect the panel with solar wire connectors like the MC4. You can connect to several batteries as long as they are connected with the correct voltage ie 12 or 24 volts depending on which way you go with the charge controller. Connecting 12v batteries in parallel will give you 12v. Go in series and you get 24v.
458390
It's a combination of solar panel size and the inverters self-contained in the Sentinel unit. The unit can accept 12v at 16amps from solar panels, so the recommended solar panel wattage is at total of 100-120 watts. That amount of power will charge the unit from completely depleted to 100% in approximately 8 hours.
2197000
3 batteries should do it, but to be safe 4.600 watts of panels to be safe. In theory you should need 2, but real world use is what im going by.
387084
I should think so....in parallel of course (+ to +; - to -). All you're doing is increasing the amps/watts, voltage will be the same (up to 22vdc with no load in full sunlight). Pretty impressive little unit for the size and weight overall
937540
As long as you have a large enough battery bank feeding it there should be no problem. I have a series-parallel battery bank with 12 batteries with a 1,400 amp capacity & my inverter never misses a beat.
1969166
Hello, I am using (2) 250 watt panels with four deep cycle battery bank and it works great.
1625344
I use just this one battery hooked up to a small inverter, and an 85 watt solar panel (DC to AC) to run equipment in my small woodworking shop. Have not used this battery independently for DC power.
221005
Watts are watts per hour. This will recharge 15 watts per hour under ideal conditions. If you are looking just to float charge your batteries- this will do it nicely. If you are looking for this unit to be your only charger- I doubt 15 watts will be enough. If you are expecting this to be your only charger: How may watts are you using per hour and how many watts per hour needed to recharge after a days work? Remember that chances are you will be attempting to recharge durning the night which means no solar power.
1650666
Thanks for your inquiry. The batteries would have to be connected in parallel, not series, in order to be charged.
914975
The short answer is YES, if connected in parallel.... BUT if you are trying to charge a 12V battery system then you will be losing about 70% of the panel power and I highly recommend contacting us to size you into the correct MPPT controller. Obviously you are getting a lot of incorrect or incomplete information. IF you are charging a 48v battery bank then this controller is fine. ML SOLAR