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Hi I have 16 cells to make up 14.2kw as a lithium battery. Anyone know what the charging voltage should be? Thanks.

Hi I live in the Philippines and want to start a solar business. I do not want to use Chinese Inverters. The difficulty is finding either American or German inverters that won’t be too expensive. Does anyone know of a good supplier in either the US or Germany? Thanks,

Hi Anyone know of a way to ensure current does not back feed to the grid without using a limiter that connects to the inverter? For example is there a a breaker with a diode that ensures current only flows one way? Thanks.

Hi, Yesterday I did a training course for Hybrid inverters. I was surprised and taken back by the idea of Smart loads. Where if the grid is working then everything is powered (combination of grid, imverter and battery) but if the grid goes down only certain loads are powered from the battery...

I have a hybrid inverter and I may want to grid tie at some point. I don’t understand the functions of limiters and if I need one. The inverter has settings to switch grid tie on and off, and the amount of power to send to the grid. But there is no port for a limiter. Can anyone explain...

I have bought a 14kw lithium battery, 52v from China. The battery components are good which is why I bought it. However the user manual is useless. Two pages basically and badly translated so, for example, it tells you to submerge the battery in water instead or not doing that! It has no...

I live in the Philippines with wall to wall sunshine. I have a PV system so household electric is covered. However, I want to make a Solar hot water system. I’ll give the general idea here, appreciate comments for improvement and if I’ve got it right. On the roof I will have a 500L water...

Hi I have just bought a 10kw (20max) inverter with built in mppt etc. I was a bit alarmed to see that the max input amps from the panels is 10 amps. So far I have 10 x 550w panels in a string. I haven’t connected the inverter yet but that could produce a max amps of 12.35 amps. (445 volts...

Hi, I’m wiring a string to a circuit breaker. Looking at the breaker I have I want to double check I’m wiring it correctly. The diagram seems to be Saying: Input from panels =. Live 1 and neutral 2 Output to inverter = Live 3 and neutral 4 Can anyone confirm I’m reading that right? Thanks.

Hi, I’m about to install 20 550w 42v My inverter has a max input voltage of 500v Which is better (efficiency): 1. 4 strings of 5 panels. (210v) 2. 2 strings of 10 panels. (420v) No issues with sharing etc. Thanks

Hi, Can anyone help me calculate how many AC watts (220v) a 48v DC, 10000 watt inverter provides? Thanks

Hi, I have just moved to the Philippines and want to put together an offgrid system. Grid power is hit and miss here. I want a 48v 20kw Lithium battery set up. Budget is about $4000. There are many options on Alibaba etc. Can anyone recommendations n the following? 1. Wall or rack...

Hi With the cold weather i want bring my lithium batteries in doors (currently in my shed). It means moving them about 4m. Currently i have thick battery cables coming from the batteries to the system. I have never seen cables that thick in 4m lengths. Any advice on what to use? The...

Hi I have a Daly BMS 150 amp which has been working fine. However, all of a sudden when we put the washing machine on (2-3kw) it disconnects the battery from everything. Nothing has changed in the system. Any idea what might be the problem? I wondered if the washing machine has suddenly...

Hi I have 2.4kw of panels and 6kw lithium battery. 24v system. I have 50 amp Victron charger. Through the summer there has been many times when it reached the 50amp limit so didn’t get full benefit of the panels. I’m wondering about adding another 50 amp controller for the winter (East...

Hi, I have a 3kw inverter which has two plug sockets for outputs. I am using one of those sockets to run a cable from the shed to the house to run appliances etc. however, every few weeks it blows the 13amp plug socket fuse from the inverter. It does have a fridge, a freezer, a tv, washing...

Hi I have an automatic transfer switch that monitors battery voltage. However, a fuse tripped yesterday and my freezer ceased to have power but the transfer switch didn’t switch because the battery voltage is fine. Any recommendations for overcoming this? Thanks.

Hi I am considering grid tieing my solar system and just trying to get my head round it. Please correct and help with any assumptions etc 1. Panels directly connect to grid tie inverter. 2. Charge the batteries up during the day using the grid that your feeding into. So how do you use the...

Hi I have bought a rotary manual change over switch (link below). But it did not come with any instructions on how to wire it. Can anyone help me with this? I want to connect my inverter and the grid. Thanks...

Hi, where can I buy 8 x 280ah cells, Grade A, that’s reasonably priced and won’t take months to arrive? Thanks.

Hi, I have just bought a Daly 8s 200a BMS. Im confused on two things: 1. There are 4 cable sets. One is the temp which is plugged in. then the Blue tooth. Then the main leads (1 black, 8 red). But there is also a lead with 4 red wires and 1 black wire. Any idea what this last one is for...

Hi I’m going to change out my lead acid battery bank for lithium. I will be getting 8 x 3.2v cells and putting two lots of 4 in series and then both lots of 4 in paralell to have 12v 560ah lithium battery bank. That’s the hope. However I cannot find an 8s 12v BMS. All the 8S look to be 24v...

Hi I have spare capacity in my solar system that is currently off grid so I’m wondering what to add to the system am thinking about how I could add my house lighting circuit to it. All the lights in the house go through one mains fuse. So I’m assuming that I could put a manual transfer switch...

Hi I have just installed a Victron Smart Shunt, I also have a Victron controller and temperature sense. I have 3 (new) 130ah lead acid leisure batteries. I am struggling with the settings. The batteries seem to always be in Bulk even though the charged setting = 13.2. Im not sure how this...

Hi I have just installed a Victron Smart Shunt. I have 3 130ah batteries in parallel using two bus bars to connect them. The Victron Shunt says the voltage is 12.5, a multimeter says 12.4, I also have an Automatic Transfer switch which says 12.3! All are directly connected / tested at the...

Hi, I need some help understanding how an automatic transfer switch works with an inverter please. Does the inverter connect to the transfer switch? Or do you need cables from inverter to appliance AND from the transfer switch to the appliance? Thanks.

Hi I need a constant 300w from an inverter, 24 hours a day, 7 days a week. 1. What size inverter should I buy? 2. What kind of inverter do I need for constant rather than occasional use? Many thanks for your help. Trevor