Collection: FAQ's

We provide 1.5m cables with amphenol push terminals that connect directly to the battery.

The latter end of the cable contains M8 terminal rings, enabling you to connect your battery either directly to the inverter, or to an external busbar. We recommend connecting all negative leads first.

Most inverters fit succinctly with the cables/push terminals supplied. In some instances, you may need to connect the cables to a busbar first, and use the inverter cables supplied by your inverter manufacturer.

Solar-free installs are now quite popular and most inverters have the ability to set charging periods throughout the night.

One of the most important factors to consider is the charging current of the inverter. If you're taking advantage of overnight charging tariffs, you'll need to fill 15kWh in around 3.3 hours. To do this, you'll need an inverter with a minimum of 90-100A (5kWh) of charge current.

These instructions presume that your main battery will be your top most battery in the cabinet.On your battery, you will see two 'Battery Link' ports.

• The left port (number 1) connects to the next battery (sending communication).
• The right port (number 2) receives the connection from the previous battery (receiving communication).

The main battery at the top should only have one RS485 linking cable in the right port.

Your bottom battery should only have one RS485 in the left port. All middle batteries should have cables connected to both.

You can safely connect up to 15 Fogstar Energy 15kWh batteries in parallel.

500 (w) x 230 (l) x 830 (h)

These dimensions are without the wheels (which can be removed), the wheels add an additional 100mm to the height.

The Fogstar Energy 15.5kWh unit contains a JK Active balancer, with a switch, enabling you to turn the function on and off. As all of our batteries contain matched and balanced cells, you shouldn’t have to use this function often, if at all. If you notice any significant disparity between the cells, we recommend putting the Active Balancing on, for two (2) to three (3) cycles.

It’s worth noting that leaving your active balancer on indefinitely will result in a self-consumption of >1Ah per day on average.

Our Fogstar Energy 15kWh battery utilises Amphenol push-pull connectors.

The  Fogstar Energy 15kWh battery weighs around 140kg.

Due to its significant weight (140 Kg), it's crucial to have at least six people assist with lifting, adhering to safety regulations.

When manoeuvring the unit on wheels, exercise caution to prevent tipping. Ensure stability during movement and utilise the levelling pads, not the wheels themselves, to support the weight.

The process should take roughly 20 minutes for one 15kWh battery system.

A protocol is a standardised set of rules for formatting and processing data. In this instance, having pre-loaded protocols in our PACE battery management system makes it simple for the battery to 'talk' to the inverter. An example of this is Solis Inverters working with the 'Pylontech' protocol. 

Victron communication via a Victron Cerbo GX which will need to be purchased separately.

The batteries connect to a Cerbo GX BMS-CAN port from the CAN port on your main battery. The Cerbo GX then connects to your inverter via a VE.BUS cable.

You'll require a type B Victron battery BMS to to BMS CAN cable for this.

Yes, all of our LiFePO4 batteries come with heating.

The heating element will automatically activate when temperatures drop below 5°C, ensuring optimal performance even in frigid environments of -20°C.

Bulk: 57.6
Float: 55.2
Low DC cut off: 43.2

Whilst we provide a robust mount for your unit (if required), we have left the mounting fixtures firmly in your hands.

It goes without saying that different wall types require different fixtures.

• Type of Wall: Understand if it's drywall, concrete, brick, or wood stud. This determines the appropriate types and sizes of anchors/screws/fasteners.
• Strength of Wall: Ensure the wall itself can support the combined weight of the battery and mounting bracket. Doubling up studs or adding reinforcement might be necessary.

If you are unsure about the fixing requirement for your unit, please contact a structural engineer who will be able to advise on the best solution for mounting your battery.

The Fogstar systems are not compatible with other types or models of battery on the market, this may be due to discrepancies in power/size of the unit, BMS or overall system compatibility.

Please do not attempt to connect your Fogstar Rack Battery to any other make or model of battery on the market.

The 'BL' by the cells indicates that the batteries are indeed balancing off - this can take a while especially if parameters have been reset as the battery will go back into learning.