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  • 2 Post By tourist
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October 20th, 2016, 01:42 AM   #1
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I Ride: 86 Honda XLR250R, 08 Husaberg FE 450 'road legal'
new battery for 08 fe450 questions, 7ah?

G-day guys, so my battery is knackered, and am looking at new ones and was wondering if the higher cca of the 6 or 7ah is a safe option for bike or will it make my stator work to hard? I mean the stock battery with its 40cca seems on paper at least to be pretty poor…
Next question how many Watts is the factory stator? Is it possible to add more windings and up their out put? I am wanting to add same auxiliary charge ports for gps cell etc. Am i going to run into issues here? I have a new speedo coming and am making a custom dash with voltmeter charge ports and key ignition. Once i have finished and work out how to post pictures i will do a built thread.
Thanks in advance Hadrian
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October 20th, 2016, 01:51 AM   #2
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Oh and one last thing… jel batteries thoughts V's led acid?
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October 20th, 2016, 02:03 AM   #3
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The charge capacity is mostly irrelevant (the Ah spec). (Within some bounds of reason.) The CCA figure is what's important. I'm fairly sure the stock battery is more tha 40CCA. As I recall the Yuasa YTZ7S battery which comes in the 570 has 130CCA. As far as I know there's the same or very similar batteries in the previous bikes.

btw - Gel batteries are lead-acid Gel is a subtype of lead-acid, that is to say. It's mostly just a difference in what kind of vessel or form the electrolyte is kept.

I don't really like lead-acid batteries. I do like LiFePO4 batteries though - they're MUCH lighter! And they have a much longer lifetime measured in charge cycles (thousands of cycles!). Meaning you don't have to replace the battery as often. And LiFEPO4 doesn't self-discharge, in other words they don't drop charge just sitting there. (There's always some parasitic drain in the system when the battery sits in a bike.) And they're safe (they're not the same kind of chemistry as what people usually call Li-Ion which is unstable and can burn or explode. LiFePO4 is stable, inert, and at least relatively non-toxic).

Re. charge capacity: I'm using a 4-cell LiFePO4 with 2.4Ah capacity and about 130CCA in the 570. It starts the bike just fine and has plenty of starts in it.

It just so happens that the charge capacity is the figure that's commonly used. With lead-acid batteries, the Ah figure is a decent proxy for the important figure, the CCA. But it's confusing in the end as other battery chemistries have very diffferent CCA-to-aH ratios.

A good type of LiFePO4 is EarthX. There are good cells in them (A123), there's a balance/protection "computer" circuit onboard, the case is waterproof, and it fits normal battery boxes.

I'd like it if there was a cheaper, smaller version available from them.

I've been using batteries. They're fine for the price - $45! - but I'll go with something a little better next time. Thinking of trying NoBS Batteries (good cells, good connector, balancing tap.)

Just to dump some technical details out there

If you want to play it safe, get a reputed brand's version of the stock lead-acid battery
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October 20th, 2016, 03:02 AM   #4
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You can't harm anything by extra CCA. The starter will only draw what it is designed to draw. Think of CCA as 'potential' Adding volts is another story though....!

Lead acid is old technology and I don't like them, particularly in a high vibration environment. You have plates within them batteries, they are grids with the lead attached and with any sort of shock the material can come away, decreasing its capacity over time.

Lead acid batteries have what's called a negative temperature co efficient which means as the temperature increases, the resistance decreases and vice versa. So cold mornings etc the output may not be as good and the more you crank, the weaker it gets. The Lithium Iron Phosphate is the opposite though if I remember correctly ( sorry, been out from the trade a while now! ) and they are really light. Like Tourist said, they hold a static charge for a long while too. I personally won't bother with anything else.

With regard to your stator, I'm pretty sure the current draw from the things you want to add would be minimal and should be fine. Give it a go

Good luck

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October 20th, 2016, 09:24 AM   #5
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Cheers tanks for the reply guys was kinda shurking at the price of lithium batteries, plus then having to get specific charger. but will look again. and the answers in regards to the later models battery is exactly what i neede to hear. And was what i was more or less asking but didn't actually know till talking to a friend last night that the 570 has a 7ah 130cca as apposed to the 6ah 40cca that is stock in my bike. Thanks heaps Guys
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October 20th, 2016, 12:37 PM   #6
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Nah, you don't need a special charger - (if you did, wouldn't you need to have a special charging setup installed on your bike?)

At least that's how I justified the change to myself

I use a Skyrich battery, it's an older version, less then half the weight. works well.

I use a normal battery charger. It's only been 4 years, it's been used maybe once or twice a year for top up, but so far so good.
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