batteries

  1. W

    split charge relay to charge two 6v 4.5ah batteries

    I have two maplin 6v 4.5ah batteries wired in series to power my dashcam while parked. The batteries are similar to this one : Will this split charge relay be ok to re-charge the batteries while driving? Maypole 292 20A Caravan Dual Charge Relay Kit: Amazon.co.uk: Car & Motorbike -...
  2. U

    DEWALT Flexvolt 18v-54v batteries

    Been looking into these batteries from dewalt standard 18v battery but has an output equivalent to 54v. Bloody expensive but they look like they will last ages and produce some serious output...
  3. N

    WIFI Door Bell

    Hi guys Merry Christmas I have an E Prance WIFI door bell system but the batteries hardly last a week, the bell takes 3 x AAA batteries, Can I connect a mains to 4.5 volt DC transformer onto the bell without blowing the thing up. Many thanks Nick
  4. O

    12v LED lights/Lead acid battery help

    Hello all, this is my first post so please don't grill me too soon ;) So I've finally got mains in my shed after a few years of using 12v lighting and rolling the extension lead out when required. For a year or two, I have been running 6 x 4.5w LED clusters as main lights using a pair of 12v...
  5. HappyHippyDad

    3ah, 4ah or 5ah?

    Evening all. My friend has asked me if he should buy 3, 4 or 5 Ah makita batteries. All my batteries are 3Ah so I do not feel equipped to answer him as I have no experience of the others. I am completely happy with the 3Ah ones, however what do you guys think? Is it better to have the 5Ah as...
  6. A

    Using rechargeable batteries in fluke MFT

    Hi everyone Just a quick question is it ok to use rechargeable batteries in my fluke multifunction tester. Or can it give me off readings ?
  7. Energetic

    VAT rating on batteries and off grid.

    Been out of the loop for a bit, am I right in assuming that batteries for a domestic self consumption situation are 5%? Also for off grid systems? Cheers E
  8. S

    Researchers Find New Ways To Make Clean Hydrogen, Rechargable Zinc Batteries

    New technologies have now been developed to tackle two of the world's biggest energy challenges -- clean fuel for transportation and grid-scale energy storage. The researchers described their findings in two studies published this month in the journals Science Advances and Nature...
  9. E

    Next Generation Anode To Improve Lithium-ion Batteries

    Researchers have created a new silicon-tin nanocomposite anode that could lead to lithium-ion batteries that can be charged and discharged more times before they reach the end of their useful lives. The longer-lasting batteries could be used in everything from handheld electronic devices to...
  10. B

    Hybrid without batteries or grid tied with Auto transfer switch? Will it work?

    I am in the process of designing a system for deployment in Southern Africa and looking for some help/input from fellow solar installers and enthusiasts. Their grid is somewhat hopeless and is often turned off due to lack of supply - load shedding. I am looking at the possibilities I have ahead...
  11. rolyberkin

    Batteries for MFT?

    The AA rechargeable cells in my Metrel MFT have given up the ghost, anyone have any recommendations for good quality replacements?
  12. P

    Combi drill and prices!?

    Hi all, I'm looking to buy a decent (not overly expensive) combi drill. Any recommendations and ideas of what sort of price I should expect? Thanks in advance
  13. L

    D Cell batteries question

    Hi, I hope this is the right place or even forum to get the answer to this. If an electrical product would normally accept 6 x D (LR20) batteries. And I wanted to extend the time that the unit went before needed to have it's batteries replaced. Would adding another 6 batteries to the existing...
  14. R

    Megger 1552 easy repair or is it time to buy a new test kit ?

    Hi all, just wondered if anyone has had a similar issue with their 1552 or 1553 Megger mft ? noticed the fault started just after I changed the batteries, fuse logo came up on screen so changed that, now it works, but when testing live circuits it completes the test, but then within a few...
  15. S

    Battery Storage

    Hi folks, what is the score now with HSE etc and storage batteries on a solar installation? I know banks of storage batteries were a big no-no a while back, I help out with a wildlife charity who have a completely off grid solar set up with approximately 1500ah of battery power @24volts, I'm...
  16. Davisonp

    Emergency Light testing and repairs

    I have a couple of questions about testing and maintenance of emergency lights. I have been told that if the LED on an emergency light does not work it must be considered “Failed” and the fitting replaced, but when reading up, I cannot find any regulations or guidance to suggest this is...
  17. R

    LED Head Torch

    Hi, I bought myself the LED Lenser H7.2 as I got a pretty good deal. I noticed they sell rechargeable power packs with charging cables, if i bought myself the pack and cable would this work the same as the H7r.2? I may be being stupid i know its not the same but i was wondering if it work the...
  18. ses

    For sale multiple items tools

    Brand new Wera Kraftform screwdriver set Brand new naked dewalt DCL510N led torch naked in box Unused Bosch 3.6v screwdriver with charger, case, 2 li-ion batteries and bit set Dewalt 110v angle grinder Green fibre glass insulated steps Little giant ladders silver version Dewalt work...
  19. Hellmooth

    Best combi drill

    Looking to get a new combi drill around the £300 range, so many options it's hard to decide what's the best, have a dewalt at the moment but it's a cheaper version and useless, I like the look of the xr range though. Had a Bosch which was decent and have heard good things about Milwaukee. Seen...
  20. uksparks

    Fluke Leads

    Hi, I have a Fluke MFT 1654B, I have had this one for about 3 1/2 years now, ever since new, when you zero the leads, regardless of if its the blue red or green leads, which ever combination, they always come out at around 0.20 Ohms. I have periodically had issues over the last 6 months or so...

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