Omega Owners Forum

Please login or register.

Login with username, password and session length
Advanced search  

News:

Please play nicely.  No one wants to listen/read a keyboard warriors rants....

Pages: [1] 2  All   Go Down

Author Topic: sealed lead acid batteries  (Read 1485 times)

0 Members and 1 Guest are viewing this topic.

Andy B

  • Get A Life!!
  • **********
  • Offline Offline
  • Gender: Male
  • Bury Lancs
  • Posts: 37775
    • R320 TDM850 SmartRoadster
    • View Profile
sealed lead acid batteries
« on: 21 February 2020, 22:38:23 »

long story  .... very short
My Mum has/had a 4 yr old motorbility scooter that was semi drowned in a recent flood. Unfortunately I didn't get chance to do anything with it sooner but last night I stripped the two battery cases (2x12v batteries in series) to find two batteries similar to these clicky Each battery showed next to the square root of f*** voltage wise. They have both been on a dumb battery charger over night .... 1 looks to be showing signs of taking a charge, but the other is showing about 6 volts.
Is the expert opinion that both batteries are beyond redemption or is there a chance of recovery?
Logged

Raeturbo

  • Omega Baron
  • ******
  • Offline Offline
  • Gender: Male
  • South Wales
  • Posts: 2875
    • Mv6 3.2 Mitsi Evo2
    • View Profile
Re: sealed lead acid batteries
« Reply #1 on: 22 February 2020, 01:06:53 »

Well, you donít want her to get stuck so you canít chance it. They will never be as good as they were even if they do charge up, however Iíve seen  batteries like that cheaper than that.
« Last Edit: 22 February 2020, 01:11:48 by Raeturbo »
Logged
Laying a rubber road.

Raeturbo

  • Omega Baron
  • ******
  • Offline Offline
  • Gender: Male
  • South Wales
  • Posts: 2875
    • Mv6 3.2 Mitsi Evo2
    • View Profile
Re: sealed lead acid batteries
« Reply #2 on: 22 February 2020, 01:10:10 »

« Last Edit: 22 February 2020, 01:12:14 by Raeturbo »
Logged
Laying a rubber road.

Bigron

  • Omega Baron
  • ******
  • Offline Offline
  • Gender: Male
  • Witham, Essex
  • Posts: 4795
    • Omega 2.6 V6 Auto '51 Reg
    • View Profile
Re: sealed lead acid batteries
« Reply #3 on: 22 February 2020, 01:50:57 »

Not covered by house/contents insurance, Andy?

Ron.
Logged

Andy B

  • Get A Life!!
  • **********
  • Offline Offline
  • Gender: Male
  • Bury Lancs
  • Posts: 37775
    • R320 TDM850 SmartRoadster
    • View Profile
Re: sealed lead acid batteries
« Reply #4 on: 22 February 2020, 06:43:16 »

Well, you donít want her to get stuck so you canít chance it. They will never be as good as they were even if they do charge up, however Iíve seen  batteries like that cheaper than that.
She lost confidence with it & won't use it it.
I just picked a similar battery from the web to show what type  ;)
Logged

Andy B

  • Get A Life!!
  • **********
  • Offline Offline
  • Gender: Male
  • Bury Lancs
  • Posts: 37775
    • R320 TDM850 SmartRoadster
    • View Profile
Re: sealed lead acid batteries
« Reply #5 on: 22 February 2020, 06:44:08 »

Logged

Andy B

  • Get A Life!!
  • **********
  • Offline Offline
  • Gender: Male
  • Bury Lancs
  • Posts: 37775
    • R320 TDM850 SmartRoadster
    • View Profile
Re: sealed lead acid batteries
« Reply #6 on: 22 February 2020, 06:45:37 »

Not covered by house/contents insurance, Andy?

Ron.
Unfortunately not. Ironically this replaced one from Boxing Day 2015 when they were flooded
Logged

Kevin Wood

  • Global Moderator
  • *****
  • Offline Offline
  • Gender: Male
  • Alton, Hampshire
  • Posts: 35715
    • Jaguar XE 25t, Westfield
    • View Profile
Re: sealed lead acid batteries
« Reply #7 on: 22 February 2020, 08:39:00 »

If the batteries are 5 years old they are likely not worth trying to salvage.

Sometimes you can wake them up by applying a higher voltage with a current limit until they start taking charge - i.e. by putting a bench PSU across them set to maybe 30V at a 0.5A current limit and just leaving it until they start drawing current. As said, they'll never be dependable so only worth doing just to test the rest of the scooter IMHO.
Logged
Tech2 services currently available. See TheBoy's price list: http://theboy.omegaowners.com/

Viral_Jim

  • Omega Baron
  • ******
  • Offline Offline
  • Gender: Male
  • Kidderminster
  • Posts: 3544
    • Swedish soot chucker
    • View Profile
Re: sealed lead acid batteries
« Reply #8 on: 22 February 2020, 09:57:54 »

If the batteries are 5 years old they are likely not worth trying to salvage.

Sometimes you can wake them up by applying a higher voltage with a current limit until they start taking charge - i.e. by putting a bench PSU across them set to maybe 30V at a 0.5A current limit and just leaving it until they start drawing current. As said, they'll never be dependable so only worth doing just to test the rest of the scooter IMHO.

Kevin makes a good point. Can you test the rest of the vehicle before you spend money on batteries? I assume these things have charging gubbins, a simple ECU/speed controller etc, none of which are likely to be thankful for a dip!  :-\
Logged

TheBoy

  • Administrator
  • *********
  • Offline Offline
  • Gender: Male
  • Brackley, Northants
  • Posts: 101696
  • Bring back the starting handle
    • The missus mad
    • View Profile
Re: sealed lead acid batteries
« Reply #9 on: 22 February 2020, 11:25:49 »

At best, you can possibly get them to take a charge using the shock method, but will never take decent capacity.

I'd just replace, likes of mds battery sell a wide variety of smaller batts, although they aren't the cheapest any more.
Logged
I own a Zafira, I'm allowed to feel depressed.

Andy B

  • Get A Life!!
  • **********
  • Offline Offline
  • Gender: Male
  • Bury Lancs
  • Posts: 37775
    • R320 TDM850 SmartRoadster
    • View Profile
Re: sealed lead acid batteries
« Reply #10 on: 22 February 2020, 12:45:45 »

If the batteries are 5 years old they are likely not worth trying to salvage.

Sometimes you can wake them up by applying a higher voltage with a current limit until they start taking charge - i.e. by putting a bench PSU across them set to maybe 30V at a 0.5A current limit and just leaving it until they start drawing current. As said, they'll never be dependable so only worth doing just to test the rest of the scooter IMHO.

Kevin makes a good point. Can you test the rest of the vehicle before you spend money on batteries? I assume these things have charging gubbins, a simple ECU/speed controller etc, none of which are likely to be thankful for a dip!  :-\

The speed controller is at the top of the 'steering column' so didn't get set but the water came about level with the socket for the charger  :(
Unfortunately I don't have access to a suitable power supply other than standard battery chargers.
Logged

Andy B

  • Get A Life!!
  • **********
  • Offline Offline
  • Gender: Male
  • Bury Lancs
  • Posts: 37775
    • R320 TDM850 SmartRoadster
    • View Profile
Re: sealed lead acid batteries
« Reply #11 on: 22 February 2020, 12:46:56 »

At best, you can possibly get them to take a charge using the shock method, but will never take decent capacity.

I'd just replace, likes of mds battery sell a wide variety of smaller batts, although they aren't the cheapest any more.
There's a place local to me that does various batteries ..... I'll get a price
Logged

Doctor Gollum

  • Omega Queen
  • ********
  • Offline Offline
  • Gender: Male
  • In a colds and darks puddleses
  • Posts: 19272
  • If you can't eat them, join them...
    • Feetses.
    • View Profile
Re: sealed lead acid batteries
« Reply #12 on: 22 February 2020, 12:48:04 »

What make is it, as batteries vary greatly.  ;)
Logged
Onanists always think outside the box.

Andy B

  • Get A Life!!
  • **********
  • Offline Offline
  • Gender: Male
  • Bury Lancs
  • Posts: 37775
    • R320 TDM850 SmartRoadster
    • View Profile
Re: sealed lead acid batteries
« Reply #13 on: 22 February 2020, 12:49:31 »

:(
If the batteries are 5 years old they are likely not worth trying to salvage.

Sometimes you can wake them up by applying a higher voltage with a current limit until they start taking charge - i.e. by putting a bench PSU across them set to maybe 30V at a 0.5A current limit and just leaving it until they start drawing current. As said, they'll never be dependable so only worth doing just to test the rest of the scooter IMHO.

Thanks. I thought they'd be toast.  :(
The scooter had only been driven about 100 yrs....
Logged

Andy B

  • Get A Life!!
  • **********
  • Offline Offline
  • Gender: Male
  • Bury Lancs
  • Posts: 37775
    • R320 TDM850 SmartRoadster
    • View Profile
Re: sealed lead acid batteries
« Reply #14 on: 22 February 2020, 12:51:08 »

What make is it, as batteries vary greatly.  ;)

The batteries or the scooter? I'm at work so can't answer either ..  ;D
The batteries are Chinese 

Found a photo of scooter & it's a Shoprider..... in blue  ;D

 
« Last Edit: 22 February 2020, 12:54:34 by Andy B »
Logged
Pages: [1] 2  All   Go Up
 

Page created in 0.116 seconds with 22 queries.