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Old 18 January 2009, 11:17   #1
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Which battery?

Think I need a new battery for the rib. This one doesn't seem to go over a certain charge. Enough to work the PTT but not enough to turn the engine over.
Not had to buy a car battery for years as I've been buying new cars. They all seem to be classed by engine size now. All you used to have to do was look up your car in a book and grab the right one. Now as you'll know they say up to 1200/1800 etc.
So what battery am I best buying?
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Old 18 January 2009, 11:34   #2
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75 ah would be a bit mean, 100 ah better assuming you have the space to mount it, properly bolted down.

This is worth a read.

http://www.sterling-power.com/support-faq-2.htm

Pete
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Old 18 January 2009, 11:57   #3
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Thanks Pete. Interesting reading!
Didn't think I'd need as much as 100 ah, expensive!
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Old 18 January 2009, 12:01   #4
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Thanks Pete. Interesting reading!
Didn't think I'd need as much as 100 ah, expensive!
It's usually cheaper if you go to a motor factors.
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Old 18 January 2009, 12:09   #5
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It's usually cheaper if you go to a motor factors.
All the local ones either only deal with companies or have shut down. But will do a search around liverpool as there's loads of back street places.
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Old 18 January 2009, 12:20   #6
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i would use a lorry battery or a leisure battery
110 amp hour lorry batteries are really cheap compared to car batteries. 60 for a 3 year warranty 110ah.
the rationale behind this is that you have plenty of spare capacity, and SLA(start lighting and auxiliary) batteries are ruined by deep discharge, by using a 110 ah you only use about 10% of the capacity even if you leave gps and radio on for a few hours.
Leisure batteries are great(for deep discharge) but you need to make sure they have a cranking capacity, most are designed for engine starting some arent. the cranking capacity will be lower than a SLA and they are more expensive.
I went for a 663 (or 664 terminals other way round)on mine (big lorry battery) cos they are the cheapest option and suitably big!
buy from an auto electrical factors they are cheaper than car batteries(being very common fitment)
I doubt you will get a 35ah car battery in halfrauds for the price of a 663.
theyre on Ebay for 59+postage

Before you buy a battery put a voltmeter across the battery, when you try and crank the engine, if the battery is cream crackerd the voltage will drop.
if it stays around 11-13 volts then you have corroded cables and connectors.
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Old 18 January 2009, 13:28   #7
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i would use a lorry battery or a leisure battery
110 amp hour lorry batteries are really cheap compared to car batteries. 60 for a 3 year warranty 110ah.
the rationale behind this is that you have plenty of spare capacity, and SLA(start lighting and auxiliary) batteries are ruined by deep discharge, by using a 110 ah you only use about 10% of the capacity even if you leave gps and radio on for a few hours.
Leisure batteries are great(for deep discharge) but you need to make sure they have a cranking capacity, most are designed for engine starting some arent. the cranking capacity will be lower than a SLA and they are more expensive.
I went for a 663 (or 664 terminals other way round)on mine (big lorry battery) cos they are the cheapest option and suitably big!
buy from an auto electrical factors they are cheaper than car batteries(being very common fitment)
I doubt you will get a 35ah car battery in halfrauds for the price of a 663.
theyre on Ebay for 59+postage

Before you buy a battery put a voltmeter across the battery, when you try and crank the engine, if the battery is cream crackerd the voltage will drop.
if it stays around 11-13 volts then you have corroded cables and connectors.
Cheers DP that sounds good!
The voltage does drop when the engine tries. So it looks like I'll have to use it to throw at the kids.
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Old 18 January 2009, 13:42   #8
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Cheers DP that sounds good!
The voltage does drop when the engine tries. So it looks like I'll have to use it to throw at the kids.
when i worked for a battery company we had empty cases for display,
they were brilliant, you pretend theyre heavy then throw it at someone
bit like a sponge housebrick. they must have weighed 300grammes
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Old 18 January 2009, 13:52   #9
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you pretend theyre heavy then throw it at someone,,


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Old 18 January 2009, 13:52   #10
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I agree

i;ve spent a lot of money on batteries always buying the best or sexiest. nowadays I just buy 110ah from towsure they seem to last as long and are considerably cheaper.
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