汽車電池 - 如何選擇岩裝既電池 Car Battery - How to get one suitable for your car

(English version below)

 知道最基本既電池分類(普通起動電池, EFB, AGM), 就要選擇邊一隻電池岩自己部車用. 若未有睇到基本分類可以禁呢到連結睇下....

搵岩電裝主要睇: (1) 尺寸, (2) 電池類別 (3) 電池頭位置

1. 日本車/韓國車 (電油車/柴油車/電動車)

呢款車比較簡單, 開頭蓋搵番粒電池, 留意一下電池上面既 label 係寫住咩型號. (因為電池尺寸既型號就係代表住電池既尺寸. 留意番電池型號, 最後2位數字及之後既一個英文字母.)

e.g. 呢款既 Acdelco S80D26LH. 最後兩位數字係 26 及 L (26L).

最後要知部車是否需要用 EFB 或 AGM, 就係睇番自己部車有冇 iStop 功能啦. 特別係二手車, 上手可能有機會換左普通電池但係自己又keep 住用 iStop, 所以最好都係睇番部車自己既功能.

2. 歐洲車  (電油車/柴油車/電動車)

有啲牌子如 Volkswagen , 電池係位於車頭位置. BMW 電池位置係車尾箱.

歐洲車既電池尺寸規格就, 通常都可以利用電池上既 Ah 數去refer 番. 特別係原裝電池. 因為尺寸通常一樣. 但係二手車有曾經換過既電就比較難以利用 Ah 數去refer 尺寸. 

最好既方法, 就係搵把尺度一度長度及寬度, 如果部車有上高既扣位需要另外度埋高度.

之後再睇番部車駛唔駛用到 iStop 功能. 

歐洲車就只需要呢兩樣野就可以搵到相對既電池.

3. 日本車/韓國車 ( Hybrid 油同電既混能)

Hybrid 除左本身自己有粒 (好似係 220V ? ) 既電去行部車之外, 另外都仲有一粒起動電池. 呢粒電池就係用黎撻著部車.

每一個牌子既電池位置都唔同. 有啲照樣放係車前面位置

有啲放係座椅下, 有啲放左係車尾.

如果粒電係放係您部車既前面, 咁就太好啦. 您可以好易睇得番粒電既型號. 照番住第一個point 所講既搵番電就ok 啦. 

但係如果您粒電係座位下面, 或者係車尾既話就麻煩啦. 因為最驚既係, 搵唔到岩您用既電池尺寸.

因為香港市面上銷售既電池牌子已經不多. 如果連尺寸都唔係跟大隊既話, 仲更加難搵.

一向見開既長方型電池, 突然變左正方型咁既尺寸. 

4. 歐洲車 (hybrid)

暫時未見過. 仲未答到大家.

(2024年12月2日更新)

1) 如果部車係用緊普通電池, 可唔可以轉用 EFB/AGM 電池? 

可以的. 但加強左電池款唔代表粒電池可以耐用過普通個粒. 個個人使用方法唔同. 有啲可能更有效, 有啲就無用. 您問我可唔可以轉EFB/AGM, 當然一定可以, 但如果您係新客, 問我可以用幾耐, 我話我個friend 部 09年 Toyota Sienta 用5年都未駛換, 我啲熟客有部用左2年幾都仲用緊, 但另外兩部就2年左右就要換. (佢地個個都有指定時間過黎俾我check 下車), 我俾個大約數您, 其實都係 

冇可能準. 

順帶一提, 如果您想普通電池改為 EFB/AGM, (應該係所有, 汽油車) 日本車如果係用緊 JIS (日本)標準係只有EFB 係市場上供應. 如果您用日本車想換歐洲版本既AGM 電池, 我建議唔好咁做.

2) 原配係 EFB 電池, 可唔可以改用 AGM ?

可以. 不過AGM 電貴過EFB 電池唔少. 如果改用AGM 係唔係真係岩, 您自己決定了.

3) 原配係 EFB 可唔可以轉普通?

有啲情況下其實係可以的. 但要自己留意有啲野先每日都要開車前做.

4)原配係AGM 電池可唔可以轉EFB / 普通?

我未試過, 我唔知.

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By knowing the three different types of battery (normal startup battery, EFB and AGM), the next step will be selecting an appropriate one for your car. If you are uncertain about these three types of batteries, check out the link here for detail.

1. Japanese / Korean manufactured vehicle (non-hybrid, Electric Vehicle)

Simply open up the front hood and take a look at the battery label. The size (and specification) of the battery is written on top. Take note of the last two numbers and one letter that follows.

e.g. This Acdelco S80D26LH. The last two numbers is 26 followed by L (26L).

Lastly, check out if your vhielce has iStop function, and whether you are using it or not. If you are using iStop function, get EFB or AGM battery.

If you wanna check out the price of the battery, type (in this case) 26L, or simply check out the price at different retail store on your own by mentioning this size battery. (if you need a EFB or AGM, you need to mention it as well, otherwise it will be regarded as normal startup battery)

2. EU manufacture vehicle  (non-hybrid)

Some brands such as Volkswagen , the battery location is at the front. Others like BMW is located at the rear (rear bonnet)

The size of these vehicle battery can normally be referred by its Ah value (especially in the case of the original battery). However, after market battery can be difficult to judge the size by referring the Ah value, as there are range of Ah offered by different battery brands.

So, the best way is to get the width and length of the battery, and check out whether you got an iStop function

At tyrehood, you can use width and length to find the list of batteryavailable.

https://www.tyrehood.com/en/car-battery.php

3.  Japanese / Korean manufactured vehicle (hybrid)

Besides the very high voltage battery (which is around 220V) that the hybrid car has, there is another startup battery to get the car engine on.

The location of the battery is different for different brands. Some located at the front, some located at the bottom of the seat, some located at the rear.

If the battery is located at the front, that is a good news. Not only you can check the battery model easily, the size of the battery is normally (or commonly) be found in the market.

But for those that located differently, it is cumbersome to find exactly the same size of the battery.

An example of the hybrid car used battery, which looks like a square size. But most commonly sold batteries are rectangle size in Hong Kong.

4. EU manufacture vehicle  (hybrid)

Haven't seen one yet.

(2 Dec 2024 update:)

1) Can I convert to EFB/AGM battery if I am using a normal battery?

Yes. But it does not necessary mean it is longer lasting than the normal one. Afterall, different people driver differently. Some might be longer lasting but some are not. If you are asking me how long can it last, I got a friend who had a 2009 Toyota Sienta used the battery for 5 years, and another one with more than 2 years and still using. However his other two vehicles only last within 2 years. All of them come for inspection at some specific time. Giving you a rough number is definitely not accurate at all.

In addition, almost all petrol Japanese vehicle are using JIS (japan) standard battery. Only EFB battery can be found in the market. If you are planning to change a DIS (europe standard) battery, I suggest not to.

2) Originally Equipped EFB battery, can it convert to AGM ?

Yes. But AGM is more epensive than EFB. It's not necessarily mean AGM is better than EFB for your use.

3) Originally equipped EFB, can it convert to normal battery?

Under some situations it can convert to normal battery but with everyday special maintenance.

4) Originally equipped AGM battery can it convert to EFB or normaly battery?

I dun know. I  never tried before.

The size of the battery market is small. Hence there are very few brands you could choose. With the increasing number of hybrid cars and different sizes required, there could be a day when there is only one or two brands available for you to choose.