batteries

  1. H

    High efficiency PV panel source (one-off qty)

    I'm doing an off-grid install on a narrowboat requiring a small no. of panels (e.g. 5 x 100W or 2 to 3 larger panels - aiming for 400Wp to 600Wp with a 450Ah battery bank). Solar payback for this setup is high because its solar or diesel generation only (rough estimate 5p / Ah at 12v). So I...
  2. C

    wireless burglar alarm

    does anyone have any recommendations for a decent wireless full system, also roughly how long do the batteries last in the pir's and door contacts, i don't bother with wireless normally but customer insisting he doesn't want wired cheers
  3. P

    Battery How do I charge 2 12V leisure batteries connected in series from my starter battery?

    Hello electrical sparkly people! Can anyone tell me I can charge two 12V leisure batteries from my starter battery? The leisure batteries are connected in series to charge a 24V 3000W (6000W peak) inverter. To confuse things, I also have two 12V batteries which came with my Ford Transit Jumbo...
  4. B

    Testing emergency light inverter

    Hi all, Would anyone know how I can test the emergency light inverter in a fitting as the batteries in the fittings are not charging. The fittings are about 5yrs old, but as per usual, the installer never put the installation date on the battery pack. I'm not too sure if my thinking of...
  5. L

    Battery Battery expert please?? advice needed

    Hi All, looking for some advice on car battery's. We have opened a clay pigeon shooting range at our farm, and my brother is paranoid about how long we can use these batteries before they start to loose the power to work the traps. they are just standard car batteries (new) some 40ah and...
  6. D

    Battery PV Storage System - "Grid Buddy" ( Battery backup & Grid failures )

    Just received a flyer from Renewable Solutions in a brown envelope; informing me about that unique storage systen for PV Systems - anybody have any experience of these guys ?? Home | Renewable Solutions UK Ltd. | Solar Panels | Wind Turbines | Biomass | Heat Pumps | Solar Heating
  7. C

    A solar charging system for a big garage

    Hi, I have been researching a solar charging system for a big garage where I would like to use lights, power tools and a dehumidifier. I am planning the following and would be interested in your opinions: 6 X Suntech 250W panels. Total 1500W. Output per day approx 4500WattHours 2 X Varta...
  8. G

    Battery crap batterys..

    was fitting some smokes n heats the other day.. here`s the batterys they came with....golden power...lol.. golden power....golden shower more like....caus their a rite shower of sh... :biggrin:
  9. K

    Battery Sony SE 18650V 3.6V 3000mAh Li-ion rechargeable battery

    Does anyone know of a reliable source that supplies Sony SE 18650V 3.6V 3000mAh Li-ion rechargeable batteries or Makita BL1830 batteries without it costing an arm and a leg?
  10. T

    calculate 12v batteries needed to power a 230v fridge.

    I am wanting to experiment with solar power at home. I want to try and power my fridge freezer as it is the only thing on at home all day. Can you advise what kit i need.
  11. C

    megger 1553

    Did a test today and while carrying out the testing, my megger had a zs on ground floor sockets as 101 ohms, end to ends were what I was expecting for the length 0.24 r1 0.25 rn, ze 0.13, tested all other circuits ok readings were good, all except g/f sockets, took everything off and found a few...
  12. C

    Battery Can anyone help with 12v battery charging here and chargers?

    HI, I am after some help/info regarding charging a battery - Just a standard 12v 22ah Golf buggy battery. Its a vrla gel type I believe. I would like to know if I can use a very basic car battery charger to charge this battery from time to time. I keep reading I should use a 3 stage automatic...
  13. M

    batteries?

    I am about to replace the battery packs within an emergency light fitting, part no 4DH4T4-DL, 5ft double florescent IP rated lights. Does anyone know what size this, and a good supplier.
  14. S

    Intruder alarms

    Just wondered what the pro's and con's are of wireless and hard wired alarm systems. Do some insurances state alarms must be hard wired?
  15. S

    Whats the deal with drills now, any ideas?

    Evening all, Been having a look at cordless drills for a while now. Im only starting out, so this will be my first :grin:. Im probably going to go with Makita(i think)... but the thing is... The new Li-ion ranges are out across Bosch, De-walt, Hilti etc etc, then there are the old Ni-Cd's...
  16. B

    Buying New Hand Drill Next Week.

    This is the one drill I have had my eye on for my budget, I most likely wont be doing anything heavy and this one covers all the bases and any time I have used Dewalt they felt good all round. DeWalt DCD785L1GP-GB 18V XR 3.0Ah Li-Ion Combi Drill | Screwfix.com at £150 its the max of what I want...
  17. B

    wireless Alarms

    Hi All, After a little advice / help, I am on the look out for a wireless system to isstall. Requirements are - Key pad must be small and descreet. I dont normally fit wireless ones only wired on the rare accasion and allways fit Veritas ones when i do. Fit the control panel away in a cuboard...
  18. C

    Bosch Impact Driver

    Anyone got and experience of the Bosch GDR 14.4v impact driver? (old Ni-Cd version, not the new li-on). There are still a few on the market at a very good price for the bare unit and as the rest of my kit is 14.4v (only limited use on the odd install job as its mostly machinery maintenance) it...
  19. T

    Fix Megger 1552 ?

    Hi, I am thinking about buying a megger 1552 MFT which is described as not working. It turns on and self tests but no tests can be performed, but I don't have any more info until I see it next week. My questions are...Has anyone had a similar problem, and does anywhere do a fixed fee repair...
  20. D

    AGM batteries and MPPT controllers compatible?

    Hi, I'm looking to create a small solar panel system (80w panel) and am looking at a 10A MPPT controller off ebay which has good reviews. However, it does not specify compatible battery types and I was wondering if an AGM battery of around 35ah would work with it? I searched around just before...

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