When to change battery

[Kb27]

the pix u showin is diy type or pro one? i saw smthg similar at diy store.

 

I have a professional booster cable and cost $90.

[Yeobh]

the pix u showin is diy type or pro one? i saw smthg similar at diy store.

 

Professional Mech

[Spinelli_ck]

MF = no way to check battery condition until it went flat.

 

the Eco-R battery is classified under MF type but it does allow one to check or top up the electrolyte.

[Fuelsaver]

 

I have a professional booster cable and cost $90.

how many amp? those 200amp i saw at diy cost below 30, 400amp cost below 40.

 

Professional Mech

ok tks. so it safe to buy if i know my car / batt amp.

[Fcw75]

 

the Eco-R battery is classified under MF type but it does allow one to check or top up the electrolyte.

 

It's maintenance free but still can top up battery water? Then might as well buy a maintenance battery in the first place, much cheaper I suppose.

 

Either get a totally maintenance free battery or get a battery that need maintenance.

 

Maybe it's just me.

Edited December 11, 2014 by Fcw75

[Hamburger]

how many amp? those 200amp i saw at diy cost below 30, 400amp cost below 40.

ok tks. so it safe to buy if i know my car / batt amp.

 

trust me, these are cables that will prove they wont work when you most needed them.

 

i HAD one of that and ...argh!!!!!!

[Kb27]

how many amp? those 200amp i saw at diy cost below 30, 400amp cost below 40.

 

 

The amp number is nonsense. They should be advertising the wire gauge instead.

If you get a 8 awg wire, they can rate it as 200 amp or 600 amp, up to them.

Those below $30 type are usually 10 awg wire.

 

I bought from http://www.chophockhong.com.sg/

It's only rated 200 amp, but the wire size is really big, something like 0 awg.

Awg number the lower the thicker is the wire.

It can jump start diesel lorries.

[Spinelli_ck]

 

It's maintenance free but still can top up battery water? Then might as well buy a maintenance battery in the first place, much cheaper I suppose.

 

Either get a totally maintenance free battery or get a battery that need maintenance.

 

Maybe it's just me.

 

"The ECO-R battery is also equipped with a vent valve, which enables the refill of water so as to maintain the correct electrolyte level, thus preventing battery explosion due to low electrolyte levels, increasing the battery's service lifespan." extracted from http://www.sgcarmart.com/news/events_features.php?AID=2953&PN=2

 

i believe this is mandatory under Japan's automotive law to prevent an accident due to battery explosion.

[Fcw75]

I using this one, for many years already. Start car, van and even forklift...haha.

[Spinelli_ck]

i made use of 8 AWG cable for grounding. would such cable be safe for jump-starting a car?

[Kb27]

i made use of 8 AWG cable for grounding. would such cable be safe for jump-starting a car?

 

It depends on the length of the wire.

Thicker wire has less resistance or voltage drop.

The longer the wire the more the voltage drop.

 

Those lithium jump starter only has 10 awg wire, but they are very short, about 6 inch, so they can jump start a car.

[Fuelsaver]

 

trust me, these are cables that will prove they wont work when you most needed them.

 

i HAD one of that and ...argh!!!!!!

tks i'll avoid at all cost.

 

It depends on the length of the wire.

Thicker wire has less resistance or voltage drop.

The longer the wire the more the voltage drop.

 

Those lithium jump starter only has 10 awg wire, but they are very short, about 6 inch, so they can jump start a car.

tks, i'll take note of that.

[Charmaine12]

What should the resting voltage of a 12v. car battery be , 2 hours after driving the car ?

 

I think when bought new , the voltage is 12.70 volts.

 

 

What resting voltage would be a hint the batt. is about to fail , and should be replaced ?

 

Or can this only be determined by a cranking/amp test at a dealership or battery seller ?

 

I realize age and heat are a factor too , but some seem to last years longer than others. I'm also not sure the Brand name assures longer life either. On some batteries you can't even check the electrolite level or top it off

 

Recently i add on 2 lcd monitor which is 9inch big. Will it eat lots of current?

I was trying to add on some led light myself.. but not sure if the load will be too much

[FastFixer]

What should the resting voltage of a 12v. car battery be , 2 hours after driving the car ?

 

I think when bought new , the voltage is 12.70 volts.

 

 

What resting voltage would be a hint the batt. is about to fail , and should be replaced ?

 

Or can this only be determined by a cranking/amp test at a dealership or battery seller ?

 

I realize age and heat are a factor too , but some seem to last years longer than others. I'm also not sure the Brand name assures longer life either. On some batteries you can't even check the electrolite level or top it off

 

Recently i add on 2 lcd monitor which is 9inch big. Will it eat lots of current?

I was trying to add on some led light myself.. but not sure if the load will be too much

 

The car battery is only used to start the car. Once the car has started - the battery's job ends and it will be recharged (as necessary) by the alternator (ie. charging system). That's how cars are designed.

 

Given this, it does not really matter that its "2 hours after driving the car". :)

 

For the resting voltage, a very healthy voltage reading would be between 12.4 and 12.6v. If you have "parasites" (ie. car camera, lights and other items requiring constant battery), you may find a lower voltage. If the voltage goes below 10v, get a new car battery before you car dies suddenly. Of course we recommend FastFix www.fastfix.com.sg (Hotline: 81145500). Since the car hasn't died yet, go to them and save the onsite fee ($40). You will get a very good deal from them.

 

Yes, one more thing: it is not really the voltage that determines if the car battery is able to start the car, it is the "CCA" (cold cranking ampere) -- this refers to the amount of current that the battery can supply for 30sec at 1.2V, what is needed to crank the engine. All battery sellers have the device to test this.

 

As for age, we recommend that a car battery be changed every 2-years in Singapore due to our hot weather. This will save you from the hassle, anxiety and frustration of a dead battery. And you will even save money because you won't need an onsite rescue!

 

For the LCD monitors and other electrical items - they'll be OK as long as they do not consume electricity when your car is off - else they are what we call "parasites": bad for your car battery.

 

Hope this helps!

[Kippei]

I installed this

 

http://www.amazon.com/Pulsetech-PowerPulse-12-Volt-Battery-Maintenance/dp/B004I6QREK/ref=sr_1_1?s=automotive&ie=UTF8&qid=1424186942&sr=1-1&keywords=pulsetech

 

Lets see how long my battery last.

[Chiongkakis]

 

My amaron last 4 yrs+ alrd....... still running well.

 

4 yrs is amazing.. how did u do that?

[Adrianli]

Not sure if this is selling here, Panasonic Life WINK. It monitors the car battery and indicates when it is time to change. For accuracy, u have to install it when the battery is new. Cant find any reviews in english, its a japanese product.

 

http://panasonic.jp/car/battery/lifewink/lw01.html

 

 

 

 

 

https://www.youtube.com/watch?v=AfMpZWldiP0

[Kb27]

 

4 yrs is amazing.. how did u do that?

 

First, take care of your battery.

 

1. Reduce its load during cranking - Switch off aircon/lights before cranking. If you have manual gear, clutched in before cranking.

2. Reduce parasitic loads - loads that are using the battery when engine is switched off, like forgetting to switch off lights, or cameras that are switched on while parked

3. Avoid deep discharge, when engine is switched off - playing radio while waiting for someone or washing car, vacuuming, all these actions deep discharged the battery.

4. If you're able to do, regularly charged the battery off an AC supply every 6 months or so. Equalizing charge is needed.

 

Finally, get a reliable brand of battery, that's Amaron in my books.