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  1. D

    Battery Attaching battery balancer to battery series

    I have two batteries in a series. The balancer has a black, white, and red cable. I understand where the black and red go, but don't understand where the white "pole" goes. It is only a single cable. Do I need to attach a splitter to it, or do I just attach it to one of the terminals in the...
  2. S

    Battery Solic 200 alongside Battery system

    I've seen similar questions but not one that specifically answers my question. I have a Moixa battery system in my house that uses a clamp sensor on the live feed to use excess solar power to charge batteries, that's all fine of course. Problem is, and you may guess this, when I fit the...
  3. B

    Lightning Protection systems T&I

    Hi All I am seeking a 1 day Lightning protection system inspection and test course in the east Anglia, Suffolk, Cambridgeshire area. A google search gives me few a far between courses and dates. Any help with find training specialists or courses would be a great help. Thank you
  4. T

    Battery Need 12V 2A Battery and connector

    Hi, I sometimes wish to use my mobile router off battery. Its one of these https://www.4gltemall.com/huawei-b625-261.html#:~:text=Huawei%20B625%2D261%20is%20a,name%204GEE%20Home%20Router%202. It needs 12V, 2A. I can get a battery for this. But what is the name of the connector used on the router?
  5. Y

    Battery 12V voltage drop dual battery camper installation

    Hi there I can't wrap my head around a problem I have when trying to connect my dual 12v battery system in a camper. When I plugged in my VSR ( Orion from the brand Victron) i measured the + input was 3 volts although engine running (and app saying 14v input...). I thought the wire were too...
  6. M

    Battery DIY Battery storage system?

    I have an 8kw solar array and I'm interested in a battery. They all seem mega expensive and can't justify the return I would get. I wondered if anyone had built there own battery rack and whether it worked out much cheaper.
  7. J

    Battery Need an installer for my home. Solar + Battery

    Hi All, I am looking for an installer to install 1. JA 455W PV panel X10 (Approx £1800) 2. GivEnergy 5kW inverter + 8.2kWh battery (Approx £3600) I have a 4 bed detached house in Wokingham, with a pyramid hipped roof. Best Regards
  8. P

    Battery tool repair advice for a battery charger

    I have a mapole 12/24v battery charger 2014 model approx.it will not charge it switches on and lights up the transformer is buzzing but no life at the 12/24v have cleaned all connections I removed the rectifier so how do I test it or just buy a new one thanks petekay
  9. T

    Addressable fire systems

    Hi all, I'm looking for some help & advice understanding addressable fire systems. I'm helping a small team out pulling in enhanced FP for a fire install. I've done a little bit of addressable fire stuff before, but not much. I'm just looking for info with regards to Interfaces, power supplies...
  10. B

    Battery Central battery through continuous lighting system

    Have dealt with central battery systems in the past, fire rated cable that either loops in and out of the luminaire using ceramic terminal blocks or dropping out from a junction box (again with ceramic terminations/connections) down to the luminaire with standard cable as long as it is kept...
  11. S

    Battery Small solar/battery system problem

    Hey guys, hoping someone can help with my problem.! A client of mine asked me to rig-up a little solar system to power a diaphragm air pump (230V/3A) for a cesspit. Solar/low voltage isn't something that I'm that familiar with (I'm a sparks), would have much rather just laid some new armoured...
  12. U

    Battery Any battery storage system worth having ?

    I already have a 4kW PV system that will be 10 years old in September, just looking at how much my electricity cost will increase in March when my fixed rate ends i'm starting to wonder if any Battery storage system is worth investing in now that energy prices and going mental.. My Electricity...
  13. H

    Battery PC Mainboard - CMOS Bios Battery Circuit

    I could imagine the CMOS Bios Battery circuits are quite similar on all recent mainboards. What does it look like and how does it work? Background: My mainboard started draining the bios battery (an ASRock H55M). I inserted a fresh battery with 3.3v. It only measured 2.9V when I removed it...
  14. R

    ungrounded 3 phase systems

    hello. looking for advice on working on a 3 ph, 3 wire 480 delta that i believe fits the definition of a corner grounded delta. the title of the thread is appropriate because theres only 3 wires marked for each phase and no neutral going into the customers main disconnect switch which powers a...
  15. S

    Battery Campervan Battery Upgrade

    Hi All, first post here therefore please be gentle! 🤣 I've just purchased a new campervan and first weekend away, the leisure battery drained/died after 2 days off grid/wild camping, due to only being a 75ah battery installed. The existing is a Lead Acid and I would like to remove that and...
  16. T

    Battery Car battery replacement

    I have had an N-reg Cavalier in long term storage during which time someone has deprived me to the battery. I suppose I could get a replacement from a breaker's yard but then I would not know the security code and the radio would be useless. The guys that designed such units obviously aimed to...
  17. Had8Lives

    Battery Earthing and Battery supplied Inverters

    Hi All, When I heard reports on the radio of people not being able to run their gas central heating because of a power cut, it got me thinking. Is there any reason a gas boiler couldn't be run on an inverter and a battery? I was thinking there might be a potential issue with some ac making...
  18. B

    Battery Checking a Gtech Battery

    Hello folks, I am trying to help a friend at the moment. My question is, is it possible to check the battery that powers a Gtech vaccuum cleaner. I have a multimeter but I wouldn't know where to start to carry out a test. I have plugged it in and had it on charge for many hours without any...
  19. G

    Battery Dicon 670 MB mains interconnected battery back up SD's

    Hi Do these SD's need a key to enable removing them from their bases? I have two to change and trying to turn anti clockwise is screwing up the ceiling decs and artex...... There is an inverted T section that leads me to think they might need a key inserted there. If not, it might be brute...
  20. david74

    Battery Omron scales battery drain. Where do I start?

    Hi, I have these Omron BF511 scales which notoriously develop a battery drain problem. Normally they are supposed to last a year but suddenly they start draining a set of 4 AA batteries within a day. I took it apart to see if it has suffered from water damage. And indeed it had. The water...

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