Car Alternator or Battery Issue

[jebatdex]

I know this thread is already for quite some time. just looking for existing thread to ask about maintenance free battery (so called dry cell battery).

recently i see in facebook a mechanic share that maintenance free battery actually has the water inside. just peel off the sticker on top, use coin to open the + cap, and refill the water inside. this will make battery last longer, some said up to 4 years.

i know the part that even maintenance free battery has water inside, but topping it up, never think of doing it. so what the difference between maintenance free and not? is it just simply maintenance free one use better electrodes/material inside?

please share your experience/thoughts. thanks...

 

[Mitevo7]

I know this thread is already for quite some time. just looking for existing thread to ask about maintenance free battery (so called dry cell battery).

recently i see in facebook a mechanic share that maintenance free battery actually has the water inside. just peel off the sticker on top, use coin to open the + cap, and refill the water inside. this will make battery last longer, some said up to 4 years.

i know the part that even maintenance free battery has water inside, but topping it up, never think of doing it. so what the difference between maintenance free and not? is it just simply maintenance free one use better electrodes/material inside?

please share your experience/thoughts. thanks...

Dry cell car battery has "lead" and rods in it to generate electricity. Maintenance free battery generally do not require any maintenance done to it, just occasionally check and ensure the power indicator is green at all time and no visible leaks from the battery. Battery life also depends on your car's electrical charging system (alternator), grounding and stability of the overall electricity supplies to your car's accessories. It's no rocket science, all batteries need to be replaced in between 2-3 years depending on how you use the car.

Thank,
Ken

 

[vr2turbo]

I know this thread is already for quite some time. just looking for existing thread to ask about maintenance free battery (so called dry cell battery).

recently i see in facebook a mechanic share that maintenance free battery actually has the water inside. just peel off the sticker on top, use coin to open the + cap, and refill the water inside. this will make battery last longer, some said up to 4 years.

i know the part that even maintenance free battery has water inside, but topping it up, never think of doing it. so what the difference between maintenance free and not? is it just simply maintenance free one use better electrodes/material inside?

please share your experience/thoughts. thanks...

Basically the batteries are the same, only MF battery have a different top. According to what I read, the system trap and condense the water vapor, therefore need less maintenance.However it still need ventilation, so will still loose some water. I have switch back to non MF battery since I find they last about the same time. If your batteries are not over charged, even non MF battery don't need to add water. What I find is usually at the end of it's life, it loose more water.
Another thing is to heat shield your battery for longer life....

 

[jebatdex]

Basically the batteries are the same, only MF battery have a different top. According to what I read, the system trap and condense the water vapor, therefore need less maintenance.However it still need ventilation, so will still loose some water. I have switch back to non MF battery since I find they last about the same time. If your batteries are not over charged, even non MF battery don't need to add water. What I find is usually at the end of it's life, it loose more water.
Another thing is to heat shield your battery for longer life....

Heat shield meaning keeping away excessive heat to the battery?

 

[vr2turbo]

Heat shield meaning keeping away excessive heat to the battery?

Yup, like some the battery are place right behind the radiator fan, as in my Chery SUV. My Mitsu one at the side so one piece of aluminum board can do the trick. Chery one I cover all round.....lol

 

[vr2turbo]

Shield L shape corner to corner. This battery dated 1/2014, upon checking was changed in 6/2017, so lasted 3 and a half years. Currently still running on the changed one so is 2 years already....

Fan blow hot air directly at the battery

 

[jebatdex]

Yup, like some the battery are place right behind the radiator fan, as in my Chery SUV. My Mitsu one at the side so one piece of aluminum board can do the trick. Chery one I cover all round.....lol

ok bro, noted... will do the same too! thanks for the tips