Regarding…others have previously asked if there is any facility to top up the batteries from off-peak power. I asked exactly the same question prior to purchase and was told well yes, but currently no in the UK. There is certainly a setting in the configuration that allows you to set 2 “charge from grid” periods. Both of these are shown enabled on my system but it doesn't actually do it. It was explained to me the reason is that SolaX think it would be frowned upon to buy power at off-peak (6p) and then effectively sell it back as generated power at your FIT rate as your battery discharges … I am not sure why SolaX think it would be frowned upon… Look at FFestiniog and Cruachan pumped-storage facilities. For over 50 years they have been using National Grid supplied off-peak power to pump water into reservoirs and on-demand they sell generated electricity back to the grid at a higher price. How is what you and others want to do different?
Thanks for the information. But what a let down: the facility is there but it is deliberately disabled. I'm quite sure that disabling it must be illegal. You pay for your off-peak electricity: where does it say that you cannot use it for recharging batteries. Are all mobile users breaking the law? If anyone with off-peak electricity uses their power during low rate to charge batteries for use during peak times are they breaking the law? What about people recharging their electric cars at night? This cannot be right.
I seriously suggest that you contact them and demand that they re-enable this feature or you will report them to Ofgem for obstructing your electricity usage. If you don't get satisfaction, you could even make a close calculation as to how much you'd save over a year, multiply it by 10 (the estimated life of the battery storage) and take them to small claims court.