A Conversation for Ask h2g2

battery hydrometers

Post 1

kea ~ Far out in the uncharted backwaters of the unfashionable end of the western spiral arm of the Galaxy lies a small, unregarded but very well read blue and white website

How long do I have to wait after topping up car battery cells before I test them with a hydrometer? The instructions say testing immediately after filling with water won't give an accurate result.


battery hydrometers

Post 2

a visitor to planet earth

one hours driving should be enough, of course topping up battery with distilled water will weaken the charge immediately.


battery hydrometers

Post 3

a visitor to planet earth

Usually called de=ionised water now


battery hydrometers

Post 4

highamexpat


Do they still sell batteries that require topping up?????? I thought they died out years ago in favour of sealed batteries.


battery hydrometers

Post 5

kea ~ Far out in the uncharted backwaters of the unfashionable end of the western spiral arm of the Galaxy lies a small, unregarded but very well read blue and white website

Can't be driven at the moment. Most batteries sold here aren't sealed.


battery hydrometers

Post 6

Br Robyn Hoode - Navo - complete with theme tune

You need to run the engine to exchange a bit of charge, get the laternator working to recharge it etc.

How low was the fluid when you topped up? What sort of state were the plates in? Was the battery flat or OK when you checked it?


battery hydrometers

Post 7

kea ~ Far out in the uncharted backwaters of the unfashionable end of the western spiral arm of the Galaxy lies a small, unregarded but very well read blue and white website

Just one cell was too low (plates exposed a bit). But I topped them all up. Battery wasn't flat. I'll put some load on and then use the hydrometer. Thanks.


battery hydrometers

Post 8

Br Robyn Hoode - Navo - complete with theme tune

No worries. Sounds like it should all be fine now smiley - smiley Just keep an eye on the cell, if it's kaput you'll notice it soon enough smiley - smiley


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