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[omega3000]

Ive had my battery on charge for 24 hrs on an Optimate charger , the charger says its still charging but has not gone into the green fully charged . Surely it should be charged by now 

[Marks DTM Calib]

Depends on the charge rate of the charger, the capacity of the battery and discharge state of the battery before charging started

[omega3000]

The battery was almost flat , barely enough to open the central locking  Charger is one ive used for years on motorcycles ive had , not sure on the charge rate .

[omega3000]

Maximum charge rate 14.3V

[vauxlooney]

how long was it left flat for? they dont take to well to being flat

[omega3000]

how long was it left flat for? they dont take to well to being flat

Probably a few days near flat , ive heard sometimes they dont recover but charger is saying its charging . Normally it goes to red if its knackered but havent seen it go to desulfate mode .

[Marks DTM Calib]

Maximum charge rate 14.3V

Thats the voltage, does it say the current?

Motordeath batteries are MUCH lower capacity so will charge a lot faster

[omega3000]

0.6A 

[AndyRoid]

A 70Ah battery will take 116 hours to charge from flat at a rate of 0.6A

The accepted charge rate for most batteries is 10% of their rated capacity, so a 70Ah battery would ideally be charged at a rate of 7Ah for 10 hours.

[martin42]

I have some jump leads here 

[omega3000]

A 70Ah battery will take 116 hours to charge from flat at a rate of 0.6A

 

I have some jump leads here 

 Lucky i dont need them but my leccy meter will be in warp mode 

Battery is fairly new though and Genuine VX one 

[martin42]

Pattern battery would have charged up quicker 

[omega3000]

Pattern battery would have charged up quicker 

 

Its strange , i had a dream last night of picking up a battery and it disolved in my hands 

[biggriffin]

A 70Ah battery will take 116 hours to charge from flat at a rate of 0.6A

 

I have some jump leads here 

 Lucky i dont need them but my leccy meter will be in warp mode 

Battery is fairly new though and Genuine VX one 

take it back if still under warranty.remember to take receipt.

[Marks DTM Calib]

Charge it up first, it will take 3-4 days (as charging is not nearly 100% efficient).

If you take it back the dealer will test it....if it shows flat you could face a wasted journey!