S80: Electrical - Battery dead - knackered?

Elninio1999 · Sep 14th, 2021, 19:51

Like a clown, I used a 12v air pump to deflate a paddling pool at the weekend with the ignition off. Took about 8 or 9 minutes. I know - rookie error

.

Figured I would just need to give her a quick jump start and go for a blast around the local area. Tried jumping using the VW golf and could get a tiny trickle of power in which got the first stage of ignition on but not even close to enough juice to turn over. Tried for a while to charge but no improvement. Borrowed my cousin for his Camaro and no improvement either.

I'd hazard a guess that it's the original battery in the 2009 S80 2.4D by the looks of the markings. What's the thoughts? Knackered battery or something else I can try?

Thanks (from the idiot!)

cheshired5 · Sep 14th, 2021, 20:03

Assuming the donor car had a suitable battery, you used good quality leads and had a perfect connection, that really should be enough to turn over the engine.

I wouldn't write off a battery just because it's been flattened but it won't have done it any good.
You'd have to fully charge it then measure the voltage under different conditions to really know it's health and chances of reliability.
Video.

Tannaton · Sep 14th, 2021, 22:57

A paddling pool inflator shouldn't have flattened a car battery in 9 minutes, unless it was drawing circa 100 amps.... So it was probably toast to start with especially if it was 11 years old.

I'd try a 24 hour charge with a battery charger, or get a battery test at Kwik Fit or Halfords. If you have a multimeter - try as suggested in the video above...

Elninio1999 · Sep 15th, 2021, 06:04

Thanks guys.

Watched your vid si, I'll check out with the multimeter when I get home. Borrowing the old man's charger and I'll see how it all goes.

Thanks again.

moorgate · Sep 15th, 2021, 14:02

8 or 9 minutes is nothing, though a lot of cars are in a pretty poor state right now after lockdown. I've just been through the charger malarkey on my V50 T5: first off the 'smart' charger was too smart for the dumb (but real Volvo) battery. Then I thought I'd bought a lemon after shelling out 50 quid for a tiny little box from Halfords: but I hadn't. It was just that it took THREE DAYS for the dumber charger to fully and properly charge the damn battery. So I think you might find you need to match up the age of battery to the dumbness of the charger. Also, when they are this flat, don't charge the battery on the car: the various background drains are enough to consume the trickle of current from the charger. At the least, take the terminals right off and give it a nice long weekend to get recovered.

cheshired5 · Sep 15th, 2021, 20:40

Quote:

Originally Posted by moorgate

don't charge the battery on the car: the various background drains are enough to consume the trickle of current from the charger.

Correct standby current drain is <50mA and even a gentle charger will be around 1A so it should be fine charging whilst everything is still on the car.

Elninio1999 · Sep 18th, 2021, 18:25

Well, trickle charged with a mains charger and got going yesterday. Went for a half hour drive and all was ok. Tried to start again this morning and didn't even get the dash lighting up. Checked with the multimeter and was only at 5.8v across the terminals.

Picked up a new battery this afternoon and we are back in the game!

Sep 14th, 2021, 19:51	#1
Elninio1999 New Member Last Online: Aug 13th, 2022 13:48 Join Date: Jul 2020 Location: Glasgow	Battery dead - knackered? Like a clown, I used a 12v air pump to deflate a paddling pool at the weekend with the ignition off. Took about 8 or 9 minutes. I know - rookie error . Figured I would just need to give her a quick jump start and go for a blast around the local area. Tried jumping using the VW golf and could get a tiny trickle of power in which got the first stage of ignition on but not even close to enough juice to turn over. Tried for a while to charge but no improvement. Borrowed my cousin for his Camaro and no improvement either. I'd hazard a guess that it's the original battery in the 2009 S80 2.4D by the looks of the markings. What's the thoughts? Knackered battery or something else I can try? Thanks (from the idiot!)

Sep 14th, 2021, 20:03	#2
cheshired5 Premier Member Last Online: Dec 26th, 2021 13:42 Join Date: Dec 2013 Location: Crewe	Assuming the donor car had a suitable battery, you used good quality leads and had a perfect connection, that really should be enough to turn over the engine. I wouldn't write off a battery just because it's been flattened but it won't have done it any good. You'd have to fully charge it then measure the voltage under different conditions to really know it's health and chances of reliability. Video. __________________ 2002 S60 SE D5 Manual 209000 miles

Sep 14th, 2021, 22:57	#3
Tannaton Bungling Amateur Last Online: Today 19:14 Join Date: Aug 2014 Location: Beverley, East Yorks	A paddling pool inflator shouldn't have flattened a car battery in 9 minutes, unless it was drawing circa 100 amps.... So it was probably toast to start with especially if it was 11 years old. I'd try a 24 hour charge with a battery charger, or get a battery test at Kwik Fit or Halfords. If you have a multimeter - try as suggested in the video above... __________________ 2011 XC90 D5 Executive 2003 C70 T5 GT 2012 Ford Ranger XL SC 1977 Triumph Spitfire 1500 1976 Massey Ferguson 135

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Sep 15th, 2021, 06:04	#4
Elninio1999 New Member Last Online: Aug 13th, 2022 13:48 Join Date: Jul 2020 Location: Glasgow	Thanks guys. Watched your vid si, I'll check out with the multimeter when I get home. Borrowing the old man's charger and I'll see how it all goes. Thanks again.

Sep 15th, 2021, 14:02	#5
moorgate Senior Member Last Online: Feb 5th, 2024 23:34 Join Date: Apr 2015 Location: london, ec2	8 or 9 minutes is nothing, though a lot of cars are in a pretty poor state right now after lockdown. I've just been through the charger malarkey on my V50 T5: first off the 'smart' charger was too smart for the dumb (but real Volvo) battery. Then I thought I'd bought a lemon after shelling out 50 quid for a tiny little box from Halfords: but I hadn't. It was just that it took THREE DAYS for the dumber charger to fully and properly charge the damn battery. So I think you might find you need to match up the age of battery to the dumbness of the charger. Also, when they are this flat, don't charge the battery on the car: the various background drains are enough to consume the trickle of current from the charger. At the least, take the terminals right off and give it a nice long weekend to get recovered.

Sep 18th, 2021, 18:25	#7
Elninio1999 New Member Last Online: Aug 13th, 2022 13:48 Join Date: Jul 2020 Location: Glasgow	Well, trickle charged with a mains charger and got going yesterday. Went for a half hour drive and all was ok. Tried to start again this morning and didn't even get the dash lighting up. Checked with the multimeter and was only at 5.8v across the terminals. Picked up a new battery this afternoon and we are back in the game!

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