When I follow the link, it isn't completely clear if it is really rated for DC use ( by the markings on the breaker ) or if the seller is being optimistic about using it with DC.
Is there more info anywhere?
Yes - well to put it into perspective, I help people with van electrical systems.
So for that application it is loads such as led lights, fan, USB cell phone charging, and often a DC refrigerator.
For a vehicle type application, what we would use a 25 watt panel for is to keep a trickle charge...
More often than you think. I have built up a customer van with dual 2 000 watt inverters. V 3000 size are common.
My oldest son built a food trailer with dual 5000s
Everything in life is a trade off.
This can be mostly solved by using a healthy 120 vac to 12 volt charger and letting it run a few minutes prior t o starting.
A relay can be added to power the charger when needed.
A charger is current limited so a much more reliable approach than connecting...
My preference is to use separate inverters and chargers vs combo units.
The reason is that when you plug in, not all outlets are wired correctly.
Especially camp sites have large loads being added / disconnected ( such as those 50 amp x 240 vac RVs ) and surges / brown outs can happen.
A...
Good point.
In the past, motors that were designed for 1 continuous motor speed depended on the fan that is attached to cool the motor.
Depending on the exact motor design (don't know the details) some motors would run warmer at low rpms / lower frequencies.
Some motors are designed for...
This is the biggest 48 volt, 3 phase charger that I know of.
It might be possible to have them build it for EU voltages, as they build to order.
Many fork trucks and golf carts are 48 volt, so that might be a way to search.
https://www.chargingchargers.com/quick-charge/qs.php
or this smaller...
Just doing a quick scan, some possible things to double check.
- Since you are using 6 awg for some areas, it might make sense to just turn the 8 awg into 6 awg for consistency.
- Can your battery pack charge continuously at 2 kW from solar + other chargers that might be running at the same...
In case it is useful, the bogart SC 2030 self limits to 30 amps, so you can over panel if you want to.
For better or worse, it is a pwm type, so it will turn on earlier in with a lower panel voltage, but is not as good when the panel voltage is high.
It is limited to 12 / 24 volt systems...
Yes, but look at how much you are learning just by doing the research - it is a lot.
The renogy rovers are an exceptionally poor mppt charge controller. The reason is that they have very high standby power draw - even at night, and the real world operation does not match the manual very well...
I would like to suggest that you add some panels that face the sun at 6 pm, in spite of the non standard nature of it.
It is common for homes to be using a lot of power late in the afternoon / early evening and ideally you will want your battery pack as full as possible to run all night.
In...
There is nothing wrong with building every component yourself, but if you want to build something that is mobile rated that you can use this summer, my suggestion is to try to buy as many components off the shelf as possible that are actually designed for mobile / marine use.
All of this stuff...
Suppose that you wanted to move ~ 1 kW from the truck to the trailer. That is roughly 100 amps @12 volts or 10 amps @ 120 vac.
Moving 100 amps from the front of a truck to the back of a trailer using 12 volts - even with a DC - DC charger isn't so easy.
Moving 10 amps @ 120 vac that far is a...
Yes - there isn't any downside.
Longer term, you will want a way to separate each battery from the system, either with a fuse or breaker.
One reason is for safety - as your set up is perfectly capable of evaporating those wires and that can be exciting.
The other less obvious reason is that...
It is a great company.
The only real challenge that I have ever had with their products have been related to the wire path bends and some challenging mounting concepts on the Kid.
It will be good to see them actually bring these products to market.
Perhaps start by focusing on taking a few critical or modest / common loads largely off grid or hybridized.
For example the refrigerator, furnace, internet, computers, TV, maybe a couple of lights. Set it up so that they are powered - to the extent possible - off grid / 24 / 7 by your system...
A couple of things.
The manuals indicate that you can fine tune the settings - in real life you cannot, esp for LiFe.
They have very high standby power draw - nearly as much as an inverter. This happens 24 hrs / day, so on an overcast day and all night long, they are burning up power.
They...
A voltage sag under load does not necessarily mean that the SOC has changed significantly.
Batteries are electrochemical systems. These reactions are fairly fast, but not infinite. Every chemical reaction is dependent on diffusion of the reactant to the reaction site, kinetics (speed of the...
48 volt is a good place for stationary applications as there is a lot of infrastructure and components available.
For mobile, 24 volt is usually a better choice unless you have a lot of experience. The electrical infrastructure for mobile is also mostly available in 24 volt and is less...
It is the most accurate on the market AFAIK.
The algorithm that it uses is a lot more sophisticated than most of the others out there.
I replaced all of their fiddly wires with somewhat heavier duty ones, as most of my stuff is mobile.
Also I run the power to the fuse block vs the in line...
Still a work in progress.
Photo on the left - The solar panel is for now, sitting in the driveway and a wire running into the garage for power.
Second photo taken on top of the work bench:
- on one side of the board is the 1100 watt inverter. ( not yet wired )
- There are 2 breakers for the...