something creating heat I can see would help, something to try and keep heat in (cold out) would, I ecpect, be countered by that bloody big cable going from negative to chassis, while that's connected I doubt there is much point. just my opinion and all.
-- Mark.
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"nec aspera terrent"
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A
Autolycus
Both 089 and 664 have the positive terminal near-left, as do 644 and 069 (two of the others mentioned elsewhere)
The fun starts because there are several variants of 069 and 089, which Lucas designate according to the length of guarantee - /1, /3, /4 (years) but which also differ in performance
Get your fixed width font on:
Type CCA(SAE) RC Ah L W H Weight(kg)
089/1 450 90 55 265 175 205 16.1
069/3, 089/3 510 105 65 18.1
069/4, 089/4 590 130 72 19.5
644 735 180 105 345 172 239 27.7
664 800 200 115 345 172 239 29.0
069 are actually 5mm longer overall, but this is almost certainly because they have hold-downs, which none of the others do.
CCA - Cold Cranking Amps. The SAE test measures the performance at -18C. CCA is the current deliverable for 30s without the voltage dropping below 7.2V. Other makers may quote DIN, ETN, JIS tests, and there is no simple conversion between the results.
RC - Reserve Capacity. Time in minutes that it can deliver 25A before the voltage drops to 10.5. Measured at 25C.
Ah - Ampere hour capacity. Number of amps times number of hours before the voltage drops to 10.5, with the current adjusted so it takes exactly
20h. e.g. a Lucas 069/4 will deliver 3.6A for 20h =72 Ah.
So the moral is that within this range of batteries, the heavier the better, and if you want to go for the cv / tractor option, remember they're longer and taller.
If it makes you feel better, the 069/4 is also recommended for a Bentley Arnage (and fits an Austin Cambridge)
B
beamendsltd
It's also worth noting that Fiamm, Hopenke, etc will all have variations on the above data - and Bosch don't even seem to use the "standard" numbers - at least not obviously. All good fun! Richard
A
Austin Shackles
On or around Mon, 21 Nov 2005 20:56:14 -0000, "Autolycus" enlightened us thusly:
You got 096 in the list? I think that's what I got for the minibus as an upgrade to the standard size one. Personally, I reckon the bigger the better, battery-wise.
DIN one is, IIRC, 1 min at -14°C to 1.4 VPC, SAE is as you say 30s at -18°C to 1.2 VPC, and thus gives bigger numbers. So if you have one with a DIN (I believe IEC is the same thing?) rating, then it'll be a lower number.
So, half an inch longer than an 089, 5/8" lower, and a bit more oomph. Sounds another good'un, if your leads will reach - it's a +ve near-right layout. The 086/4 has an almost identical spec, but is +ve near-left.
But, as Richard says, other makers use different designations, and may well have different specs for the same physical size. I expect if you want one this week you take what you can find - the cold snap has certainly finished off one of mine, so I expect there's been quite a run on batteries.
B
beamendsltd
Just to make things interesting, during this week I'll "doing" the Defender batteries for the site - there's a hell of them!
Oh joy.....
Richard
G
GbH
In news: snipped-for-privacy@zhochaka.org.uk, "David G. Bell" wibbled :
No it won't, a Hygrometer will tell you at best how damp it is, to measure Specific Gravity you need a Hydrometer.
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