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Car Battery


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#11
vr2turbo

Posted 31 March 2006 - 10:08 AM

vr2turbo

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gti,

I bought a MF NS70 battery two months back at only RM160, but Made in
Indonesia. So far so good.

rdgs,

#12
vr2turbo

Posted 31 March 2006 - 10:17 AM

vr2turbo

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gti,

If battery still usable, keep until kong like you say, to save some cost.

Lights dim I understand, but why are the brakes and power steering less
responsive. These two items runs on engine speed and not battery power.

Engine speed creates a better vacuum, making your brakes bit better and
engine speed also pumps your power steering pump.

Maybe, you should check/tune your engine.

rdgs,

#13
phil70

Posted 31 March 2006 - 01:18 PM

phil70

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There is a lot of substandard batteries out on the market. Say for example
A NS 60 is supposed to be 13plate, but in most cases if one bothers to look
inside the battery one can only count 9 plates, lately I have seen 7
plates. so be careful. For me I always go upgrade my alternator, 100 amps
alternators are pretty easy to find nowadays. Recently I got my hands on 3
units Borsch alternators with 130 amps output around Rm 500 each. anyone
interested?
can be fitted to Hondas and Protons.Smile

#14
Esky

Posted 03 April 2006 - 08:14 AM

Esky

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phil,

won't the 100A alternators be a drag, literally?

Nowadays it seems like more and more cars are downsizing the OEM batts to
cut cost. PV6 used to come with NS60 (not sure about now), Vios and City
come with NS40, even the Stream (or is that the Wish? can't recall exactly)
come with NS40, those kancil-sized batt.


#15
yscheong

Posted 03 April 2006 - 05:41 PM

yscheong

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Samll battery size do not means only on small car or may kong faster. It
depends on the car design.

My City idsi NS40 1 battery (made in thailand fit from factory) kong on
42k km or 11 months time. 2nd battery (yokohama) kong at about 11 months
with about 40k km also. Lucky is under warrenty and replace FOC with not
famouse brand. Till now another 9 moths and about 30k km, I feel it is
week already.

My mom Altis 1.8 ori battery also NS40 used up to 3.5 years or more than
50k km. Even the mec also suprise that a 1.8 car use NS40 battery.

#16
genie47

Posted 03 April 2006 - 10:53 PM

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The Japanese cars have downsized their batteries. Even an MPV like the Wish
has a tiny battery. Compare this to my 1.4L Aveo. It came with an elephant
sized 55Ah battery with 90min RC.

#17
fkmfkm

Posted 03 April 2006 - 11:12 PM

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the battery will die fast if the charging system is bad..regardless of big
or small...

if the charge supplied is not sufficient to make the battery fully charged
it will suffer premature death...

#18
phil70

Posted 05 April 2006 - 10:16 AM

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nowadays most new cars come with a reasonable size alternator,thus the OEM
battery is rather small since it's main purpose is to start the engine and
once the engine is started, the alternator takes over suppling the
electrical needs of the vehicle needs. Then there is the problem of us
adding components
that makan the electrics thus running both the alternator and battery down.
I have noticed a lot of battery and alternator changes. in my case I
suggest a bigger alternaor is because both this components(battery and
alternator) will last a long time with the upgrade. I have upgraded the
alternator on my Toyota to 100amps and I am only using Rm 80 NS60 and 8
years No battery failure!!!!! That car half million Km. Plus 20 yr old car.
still running around fine.

#19
howlings

Posted 05 April 2006 - 10:39 AM

howlings

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wow phil, this is the first time I heard that a battery can last up to
8yrs! That is really amazing. Average battery would fail after 2-3 yrs
usage.

btw, is this a MF or normal battery?

#20
adnoc

Posted 05 April 2006 - 11:04 AM

adnoc

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Bear in mind, the later cars are equipped with more and more electronic
gadgets and while even when the car is not ignited and running, the
battery supply must be sufficient to maintain all electronic settings for
the car besides supplying current for the starting of the engine.... so
stay within the recommended battery specs, do not downgrade....

higher ampered alternator will definitely improve current supply, but
beware of over-charging the battery if the condenser is spoilt... this in
return may shorten the life span of the battery and also some electronic
gadgets are very sensitive to increase in amperage... so it might shorten
the life span of the gadget too...

also ever wondered why some cars have certain wires that heats up, melts
and burn...? there is always a connection between the wires resistance
and the amperage supplied.... the equation of I (amperes) =V (Volts)/r
(ohms)... and electrcial power is P (watts)=V(volts) x I(amperes)

assuming the following:

You know that P = 100 W, and V = 6 V. So you can rearrange the equation
to solve for I and substitute in the numbers. I = P/V:

100 W / 6 V = 16.66 amps

What would happen if you use a 12-volt battery and a 12-volt light bulb
to get 100 watts of power?

100 W / 12 V = 8.33 amps

So this system produces the same power, but with half the current. There
is an advantage that comes from using less current to make the same
amount of power. The resistance in electrical wires consumes power, and
the power consumed increases as the current going through the wires
increases. You can see how this happens by doing a little rearranging of
the two equations. What you need is an equation for power in terms of
resistance and current

What this equation tells you is that the power consumed by the wires
increases if the resistance of the wires increases (for instance, if the
wires get smaller or are made of a less conductive material). But it
increases dramatically if the current going through the wires increases.
So using a higher voltage to reduce the current can make electrical
systems more efficient. The efficiency of electric motors also improves
at higher voltages.

This improvement in efficiency is what is driving the automobile industry
to adopt a higher voltage standard. Carmakers are moving toward a 42-volt
electrical system from the current 12-volt electrical systems. The
electrical demand on cars has been steadily increasing since the first
cars were made. The first cars didn't even have electrical headlights;
they used oil lanterns. Today cars have thousands of electrical circuits,
and future cars will demand even more power. The change to 42 volts will
help cars meet the greater electrical demand placed on them without
having to increase the size of wires and generators to handle the greater
current.

IMHO, change to a maximum recommended amperage alternator, replace with
recommended plated MF batteries...

cheers