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battery

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  1. littlespark

    SDS battery drill

    Thoughts on this? Might be the start of a new Bosch collection. £200
  2. J

    Powering battery lights

    Hi there. We have a 4 sets of what are currently battery operated lights. We would like to either connect them all to one power battery source or ideally to a plug to power them. Any advice appreciated
  3. EricMark

    Charging batteries and battery voltage?

    OK I was an auto electrician back in the 70's and 80's so under stand a lot about batteries, however at that time the sealed for life battery was rather new, and you may have had a VRLA in a fire alarm, but not in a vehicle, the AGM battery was unheard of. So did have stage battery chargers for...
  4. H

    drop battery voltage

    Hi folks, I need to drop a 12 volt battery down to 2.2 volts. The load will be 20 - 25 amps not sure yet but it will be consistent. I've been reading about using a series voltage dropping resistor and I am out for easy, I don't mind power spill as it's a one off test scenario (single cell...
  5. S

    Battery Discharging on Vehicle

    Hi, My Peugeot Boxer 2.0L (X reg 2000) petrol based campervan has developed a problem. We were away last weekend and when I tried to start the vehicle after an overnight stay the battery was completely flat. I borrowed a charger from a person on the campsite, took the battery off the vehicle and...
  6. P

    Installing FIA Battery Cutoff Switch

    Hi I'm installing an FIA battery cutoff switch into a Megane R26 Race Car. I have no issue with the main battery contact and the resistor install. I need an a way of stopping the engine because just cutting the battery will leave the engine running from the alternator. I'm looking for an easy...
  7. pe2dave

    Smoke alarm. Changing from mains to battery.

    Removing a 20 yo smoke alarm, wired in. Two cables coming through a rafter 'hole', fastened into the alarm. Chocolate block (whatever they are called these days) used to connect the alarm to the incoming mains. Question: Entire chocolate block (5 connections) won't go through the rafter hole...
  8. LewisM

    Best before date on a battery?

    Hello, I am in need of a replacement tyre pressure sensor and the below is a bargain price for a OEM part, the best before date on the packaging says 21.01.21, I'm assuming this is the date it should be fitted by right? It contains a lithium battery. Thanks Lewis
  9. N

    My motorbike has no power. Battery charged, fuses checked, power is going to the starter rely but not beyond....please help.

    Recently changed my starter relay on my xv1600 wildstar. When reattaching battery cable, it caught a small thermostat and sparked. Now whilst I have power to the relay from the battery I have nothing beyond the relay and turning the key does nothing. All fuses have been double and treble...
  10. Moley

    How to replace the Kewtech KT77 date backup battery

    If you have a Kewtech KT77 and its asking you to enter the date and time each time you turn it on it means the backup battery is dead. I've seen sites charging over £60 to replace the battery. It's simple enough to do it yourself. The battery is available online for around £3 or from RS if you...
  11. Rockingit

    Battery OR panels?

    Have a customer asking me for a 2nd opinion on advice they're being given by their SPV installer - and I'm not quite up to speed with solar stuff enough to know..... They have two arrays, one standard 4kw FIT array and then a slightly smaller array which just adds what it can 'off grid'...
  12. K

    Can you charge a 24V battery with a 54.6V charger?

    Sorry guys for my ignorance !
  13. B

    Battery Discharging

    Will a battery discharge if left in a device which is switched off even though the positive and negative terminals are still connected?
  14. 6

    https://www.66autocolor.com/house-of-kolor-orange-car-paint-s/3604.htm

    I have 2:30 amp relays running the door poppers for my shaved door handles. They only seem to work properly when the Vehicle is running. Is this an alternator a battery relay or perhaps a wiring problem?
  15. M

    Any Way to Make AC Power Wire Charge a Battery?

    Hello all, I am currently working on a vintage scooter and I am having some trouble electrically. I put an engine meant for a newer bike onto it and the wires that come from the stator of the new motor don't match up with the wiring harness of the bike. After getting the ignition to work, I am...
  16. D

    What battery and what LED will work best to maintain constant brightness for 10 hours?

    Hi there, Just to say I apologise for my lack of basic knowledge, this is something I am interested in learning more on! Anyway I am looking to build a UV emitting light system that shines continuously for 10 hours at least, compromising of an LED, a battery and a resistor I guess. The goal is...
  17. littlespark

    Cause of sudden flat battery

    My eldest girl has a 10 plate Kia picanto. Bought for her by her grandparents, and she was supposed to be taking it away today, up to Aberdeen to move into her new flat. During lockdown, it hasn’t been used all that much, but it has been used. A few weeks ago, I swapped out the radio for a cheap...
  18. B

    Auto - 6 volt with a 12 volt battery

    Is it possible to have a 12volt battery, have it reduced to 6 volt to be compatible with a 6 volt system and still be able to maintain the 12volt battery by way of an inverter or something?
  19. C

    Looking advice on fixing laserlevel battery

    Hello, first time poster. I am here looking advice on how to connect my batteries in my laser level. I dropped it and it stopped working. Opened it up and the attachments to each battery have broken. I tried to.solder it but it doesn't seem to have taken to it..any tips or advice on how to join...
  20. E

    Simple Solar Powered Pump w/ Rechargeable Battery

    Hi Everyone, My aim is to build a simple solar powered pump with a rechargeable battery to water plants. The idea is to use a 6V 1W Solar Panel connected to a TP4056 (protected) to charge a 18650 Lithium Ion Battery. On the output is an MT3608 2A Boost Converter to step up the voltage to a...

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