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  1. J

    Battery Best battery system to add to existing PV installation

    Hi, I'm new to this forum. I had a 4kW PV system installed in 2011 with SMA inverter. It has performed without fault and I'm now considering adding battery storage. I'm looking for advice on the best sort of system to use, and manufacturers and installers in SE England. My estimated annual...
  2. G

    Battery Mikita DC18RC Charger, 3.0Ah 18v Battery question?

    I am very confused by this charger. The yellow LED in on, Battery Conditioning. What does that mean? Battery is fully charged, I think after 30 minutes. The yellow LED is still on. Makita needs to provide better documentation. Their lead blower runs out of juice on high after about 15...
  3. F

    Battery 9v Battery Backup in line with mains adaptor?

    Hi everyone, I have a Toro garden water controller. It is a 9volt system operated by two PP3 batteries. With age the very thin wires on the battery connection have broken. It is in a shed so I have changed the batteries for a 240/9v adaptor. Works great and saves a lot in replacement batteries...
  4. littlespark

    Battery Battery off-peak charging?

    I’m highly likely to swerve this one, but just wanted to hear some thoughts. Old guy at newsagents this morning saw my van and started asking questions. He wants to somehow use off-peak rates to charge battery’s overnight…. Then use the battery through the day to run the house. (Electric...
  5. T

    Battery Buy Solar battery storeage then disconnect it?

    Hi, I wish to buy discounted solar battery storeage, eg Powervault. https://www.powervault.co.uk/ I can get £2k discount if i agree to "grid-flex", in other words, i connect it to the internet, and let the power company sometimes have control of my battery, and then they can sometimes...
  6. D

    Battery Adding 12v Deep Cycle Marine battery for CPAP and camping

    I'm wanting to add a 12v deep cycle battery to my minivan to power some items. These are a CPAP machine and some small vent fans (like USB powered computer fans.) At the rear of the van is a 12v cigarette lighter socket I'd like to use. Can this be connected directly to the battery (positive to...
  7. T

    Battery How do you pair a storage battery/solar and an Air Source Heat Pump?

    Hi, How do you control a storage battery when it is in a house that also has an Air Source Heat Pump? (also solar panels on the roof))
  8. M

    Battery NFPA70E battery 100 VDC vs OSHA 50 volt standard

    I just finished the NFPA70E 2021 online training. As far as I understand it the NFPA 70E is OSHA compliant but, I feel like the guidance between them disagrees when it comes to the shock hazard of DC batteries. I work with EV type battery systems 28V to 800 V so, this is important. OSHA general...
  9. T

    Battery How to wire a comms wire to a Battery storage system?

    Hi, We want to buy a Powervault Battery/Inverter/charger storage system. The Powervault must be able to read a current transformer, clipped on to the incoming mains line next to the consumer unit. This current transformer module has an ethernet connection. The following Powervault...
  10. A

    Battery No Power to Golf Trolley Battery Charger

    Hi All, I'll add some pics as soon as I can but just to get the thread started, I have a golf trolley battery charger that doesn't have any power. The unit has a light that should light up when plugged into the power socket however this doesn's light up and no power goes to the battery. I have...
  11. F

    Battery Hi What battery will run a 14.8v 4000mah fishing reel?

    Hi what battery will run a 14.8v 4000mah fishing reel?
  12. T

    Battery Battery/solar/inverter system gives inaccurate power readings

    Hi, I have purchased a battery/inverter/solar system for my home. I also have a smart meter, and an app which links into my smart meter to get the power data from the smart meter. The battery/solar/inverter system also tells me how much energy I am using. However, its readings are not accurate...
  13. T

    Battery How do you "pair" a Zappi and a Solar/Battery system?

    Hi, I have a Zappi charge point, and a myenergi Hub. I also have a battery/solar system. How do i "pair" these together? Or dont i need to do anything?
  14. T

    Battery My house imports electricity from grid when battery is full

    Hi, I have solar/battery system in my house. Every now and again, just for say 30 mins in a day, i note that i am importing electricity from the grid even when the battery is full. Why is this happening. It doesnt happen all the time, but more often than i would like. Why is it? How do i...
  15. littlespark

    Battery Reported content: Post in thread 'Battery/UPS for home with leased solar PV, looking for hardware & installer'

    Post in thread 'Battery/UPS for home with leased solar PV, looking for hardware & installer' by piorunz has been reported by littlespark. Reason given: Content being reported:
  16. P

    Battery Battery/UPS for home with leased solar PV, looking for hardware & installer

    Hi all, I am looking for battery/UPS system to install in my home, so I have power in sockets in the rooms when mains AC is off. I have leased solar panels installation on the roof, it comes with inverter, smart meter etc., I can't modify their unit. But their power could re-charge battery/UPS...
  17. T

    Battery 2kW Grid tied inverter for battery storage in house

    Hi, I have bought a 2kW grid tied inverter for putting energy from my solar battery back onto the mains. Will i need a 6mA/30mA RCD just upstream of the GT inverter?
  18. T

    Battery Battery 20v Lithium-ion not holding charge

    1. I have an Aldi Cordless Hedge Trimmer, powered by a 20 V Lithium-Ion battery. It is manifestly under-powered - jams frequently - and their tec support cannot offer any advice ("At that price what do you expect?"!!) I see however that you can run the machine with an optional 40 V battery...
  19. K

    Battery Keep Bluetti battery device always connected to 12v

    Hi, TL;DR Will I short the car battery life by having a external battery always connected to the 12v port? I'm planning to buy a Bluetti battery (500wh) for my camper and connect to it a mini fridge, so to keep battery level as high as possible, I assume the best option should have it always...
  20. L

    Battery Battery tools.

    Just out of interest do people use their own battery gear (combi drill/ impact/circular saw ) ect.. if you are employed( PAYE) or does the company supply them for you to use. Obviously hand tools and such have always been a requirement for employees to have them selves but just wondered if its...

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