|||
Current Website Support
82
Contributors
21
Subscribers
You are Not Registered
Donate for your silver medal πŸ…
Β£10
Β£15
Β£25
Β£50
Subscribe for your gold medal πŸ…
Β£1
Β£3
Β£5
Β£10
You Will Be Helping Towards:

  • Domain Fees
  • Security Certificates
  • iOS & Android App Fees
  • Website Hosting
  • Fast Servers
  • Data Backups
  • Upkeep & Maintenance
  • Administration Costs

    Without your support the website wouldn't be what it is today.

    Please consider donating towards these fees to help keep us afloat.

    Read more

    All donations are securely managed through PayPal. Amounts donated are not published online.

    Many thanks for your kind support
  • Join Us On Social Media!
    Model Boats Website
    Model Boats Website
    Home
    Forum
    Build Blogs
    Media Gallery
    Boat Clubs & Lakes
    Events
    Boat Harbour
    How-To Articles
    Plans & Docs
    Useful Links
    5

















    Followers
    Lead Acid Battery Charging Potential
    by nasraf πŸ‡¬πŸ‡§ ( Chief Petty Officer 1st Class)
    πŸ“£










    Click To
    Follow
    14 Posts 13 Replies 0 Photos 17 Likes
    ( Newest Posts Shown First )
    nasraf
    Chief Petty Officer 1st Class
    πŸ“ Lead Acid Battery Charging Potential
    Flag
    Country: πŸ‡¬πŸ‡§ United Kingdom
    Online: 15 days ago
    😊 View Profile
    πŸ’¬ Send PM
    I have now taken the batteries out of the chair the voltage barely detectable have connected them up to the charger to see if some life can be brought back to them but I do not expect I will get very far.

    Checked charger output at about 0.75 amps and voltage from open circuit only fell from 25.3 to 24 volts. Trying to workout circuit diagram of chair charging system.
    piers006
    Recruit
    πŸ“ Lead Acid Battery Charging Potential
    Flag
    Country: πŸ‡ΊπŸ‡Έ United States
    Online: 23 days ago
    😊 View Profile
    πŸ’¬ Send PM
    Just checked eBay $10.99 shipped! Also looked at battle and see the series I mean to use are available in 3 sizes with just an increase in width. Don't know if more than the 7ah is needed but the option is there. Thanx for that tidbit! GJ
    1
    piers006
    Recruit
    πŸ“ Lead Acid Battery Charging Potential
    Flag
    Country: πŸ‡ΊπŸ‡Έ United States
    Online: 23 days ago
    😊 View Profile
    πŸ’¬ Send PM
    Very interesting, would make charging simple on 2 battery setups.
    1
    nasraf
    Chief Petty Officer 1st Class
    πŸ“ Lead Acid Battery Charging Potential
    Flag
    Country: πŸ‡¬πŸ‡§ United Kingdom
    Online: 15 days ago
    😊 View Profile
    πŸ’¬ Send PM
    My new 24 volt charger arrived to day from e bay, cost with delivery Β£ 10.69. This is with a very nicely made connector that I will remove. Output voltage unloaded 25.4 which would seem about right for two 12 volt batteries in series at indoor temperature.

    Other for sale on e bay nominally for stair lifts ranged from Β£ 199 down ! which further confirms my belief that a lot of the infirm are being ripped off.

    When I have time and the energy, next to get the old batteries out and see what state they are in.
    1
    nasraf
    Chief Petty Officer 1st Class
    πŸ“ Lead Acid Battery Charging Potential
    Flag
    Country: πŸ‡¬πŸ‡§ United Kingdom
    Online: 15 days ago
    😊 View Profile
    πŸ’¬ Send PM
    Hi piers

    You are a bit like me have been a member for a long time with big gaps in our building. I have two on the go very slowly at the present time, but have a lot of other things to do.

    Best of luck with your re start and this site and its members are a great source of information.

    nasraf
    nasraf
    Chief Petty Officer 1st Class
    πŸ“ Lead Acid Battery Charging Potential
    Flag
    Country: πŸ‡¬πŸ‡§ United Kingdom
    Online: 15 days ago
    😊 View Profile
    πŸ’¬ Send PM
    Hi Griss

    Thanks for the response I will have a look on Aliexpress I am already a convert.
    piers006
    Recruit
    πŸ“ Lead Acid Battery Charging Potential
    Flag
    Country: πŸ‡ΊπŸ‡Έ United States
    Online: 23 days ago
    😊 View Profile
    πŸ’¬ Send PM
    Great post Nas. I was a mechanic at the U of Minnesota for 34 yrs. Among my myriad of duties was maintaining battery powered 3 wheel carts for the miles of steam tunnels 100 feet below the campus. Every week I'd top up the cells of the size 27 car batts. There were a pair of 12v chargers for each cart. Battery attrition was high due to the heat-someplaces 140F. I'm a new oldie here and am moving forward on a ship whose hull was built 10 yrs back. Have no experience in RC so a new learning subject. As with any field you web folks are the goldmine of info for us nubes. Thankyou,GuzziJohnπŸ˜‰
    2
    nasraf
    Chief Petty Officer 1st Class
    πŸ“ Lead Acid Battery Charging Potential
    Flag
    Country: πŸ‡¬πŸ‡§ United Kingdom
    Online: 15 days ago
    😊 View Profile
    πŸ’¬ Send PM
    Hi Roycv

    It is not possible to add a third terminal, as the connections are made with effectively a pair of brushes at the top and bottom of the rail. So I am afraid that they will have to be charged in series.

    Thanks for the suggestion.
    Griss
    Master Seaman
    πŸ“ Lead Acid Battery Charging Potential
    Flag
    Country: πŸ‡¬πŸ‡§ United Kingdom
    Online: 4 hours ago
    😊 View Profile
    πŸ’¬ Send PM
    The chinks produce intelligent chargers at the right money how good they are is unknown i.e. possible fire hazard.Use of intelligent charger will cure your overcharge problems.
    1
    roycv
    Petty Officer 1st Class
    πŸ“ Lead Acid Battery Charging Potential
    Flag
    Country: πŸ‡¬πŸ‡§ United Kingdom
    Online: 4 seconds ago
    😊 View Profile
    πŸ’¬ Send PM
    Hi they must come out for replacement? I would get to them and put an extra wire between them i.e. centre tapped. Bringing it out so it is near the other terminals. This way you can charge them as 12 volt batteries.

    If one of them goes down you will never know otherwise!

    I would not charge them as 24 volts as there must be chargers around but 12 volt ones are more plentiful.

    Roy
    1
    Show 4 More Posts



    About This Website
    Terms of Service
    Privacy Policy
    Cookies used in this website are gluten free, wheat free and dairy free. By using this website you agree to our use of cookies. More Info