Extend Car Battery and Tires Trading & Services

24/03/2026

How to Make Your Car Battery Last Longer

Our battery specialist advise on how to keep your car powered up.

You try to turn on your car, and it just won’t start. Maybe the dashboard doesn’t even light up. A likely cause: The 12-volt battery is dead.

All cars lose a little battery power when parked. If you drive the car regularly, its electrical system will charge the battery back up. But if your battery dies after being parked for only a few days, you may have a serious problem that could eventually leave you stranded.

It’s an obvious red flag, and there are a couple of common causes, “The battery might be at the end of its life, or there could be something broken, like a failed control module that’s drawing electricity, and your mechanic will need to find the cause.”

A healthy battery should last between three and five years. To make sure you get there, here are a few simple steps our experts recommend to prolong its life and catch any issues before they cause trouble.

A. Don't Let the Car Sit
Driving is better than idling to top off the battery. How long you can wait between drives depends on the car, but in general, driving it at least 20 minutes roughly every two weeks should keep the battery functional. If you can’t manage that, find and disconnect the negative battery cable—the black wire. This keeps systems in the car from drawing power while it’s off.

Expert tip: Buy a trickle charger which keeps the battery charged from a wall outlet.

B. Mind the Accessories
Don’t stay in “accessory mode” for long. That’s when the radio or heater are on but the engine stays off—often activated by pushing the stop/start button without your foot on the brake. In this mode, the car is using battery power without recharging.

Expert tip: Add-ons such as a dash cam or mobile phone charger can drain the battery faster. Make sure these devices are unplugged when the car is parked. It’s not enough to just turn their power off.

C. Lock It Up
Even if your car sits in a secure garage, lock the doors. Many cars leave some systems powered when left unlocked to stay ready for someone to get in and drive away. Locking the car minimizes the power that is drawn.

Expert tip: Modern proximity keys—which automatically unlock the car when you approach—are convenient. But store them far enough away that they don’t accidentally wake up the car. A hook on your garage wall could be too close.

D. Maintenance Is Key
Check that the cable connections are tight, clean, and free of corrosion, which often looks like fuzzy, green and white buildup. (If you don’t want to do this yourself, ask your mechanic.) Periodic testing can also tell you when the battery is due for replacement before it completely fails. Test it twice a year at a minimum or every 6 months.

Expert tip: Many shops test the battery when cars come in for service, so check your paperwork for a slip with the inspection results.

E. Just in Case
Even well-maintained batteries can fail, so it’s good to have a backup plan. The easiest option is to subscribe to EXTEND TRADING AND SERVICES FREE BATTERY MAINTENANCE every 6 months and 24/7 RESCUE SERVICE. They will send a service technician to maintain your battery and rescue you wherever you are from San Pedro to Calamba Laguna. In the SLEX all gasoline stations north bound or south bound from Alabang to Canlubang.

EXTEND TRADING AND SERVICES
CONTACT: 09989513040

11/01/2026

AVOID DISCHARGING, OVER-DISCHARGING YOUR CAR BATTERY

A lead-acid battery that cannot maintain voltage typically has a problem with sulfation, where lead sulfate crystals build up on the plates and reduce the battery's ability to store and release energy. This can be caused by over-discharging, undercharging, or simply aging. Other potential issues include a dead cell, short circuit, or internal damage.

Here's a more detailed breakdown:
1. SULFATION:
* What it is:�When a lead-acid battery discharges, lead sulfate forms on the plates. If the battery is left discharged for extended periods, this lead sulfate can crystallize and become difficult to convert back to usable materials during charging.�
* Consequences:�Sulfation reduces the battery's capacity and voltage output, making it unable to hold a charge as effectively. �
* Causes:�Over-discharging (leaving the battery discharged for too long), undercharging (not fully charging the battery), and simply aging contribute to sulfation. �
2. OTHER POTENTIAL ISSUES:
* Dead Cell:�A battery with a dead cell (a cell that has completely failed) will not be able to reach its full voltage or maintain a stable voltage. �
* Short Circuit:�An internal short circuit can cause the battery to lose voltage rapidly and may even cause the battery to read 0 volts. �
* Internal Damage:�Physical damage to the battery plates or other internal components can also lead to voltage instability. �
3. CONSEQUENCES OF VOLTAGE INSTABILITY:
* Reduced Battery Life:�If a lead-acid battery cannot maintain voltage, its lifespan will be significantly shortened. �
* Poor Performance:�Dim lights, slow cranking (in vehicles), and reduced run time for devices powered by the battery are all common consequences of voltage instability. �
* Safety Hazards:�In some cases, a severely damaged battery can pose a safety risk, especially if it's overcharged or short-circuited. �
4. WHAT TO DO:
* Charge Properly:�Ensure that you are using a compatible charger and that you are charging the battery according to the manufacturer's recommendations. �
* Avoid Over-Discharging:�Do not let the battery discharge completely, and recharge it promptly when it's discharged. �
* Consider Regular Battery Maintenance:
Regular battery is impotent in extending the lifespan of your battery. Have you battery checked every 6 months.�
* Replace the Battery:�If the battery is severely sulfated, damaged, or has a dead cell, it may need to be replaced.

AVAIL FREE BATTERY MAINTENANCE EVERY 6 MONTHS!

Call or text 09989513040

EXTEND TRADING & SERVICES

26/11/2025

DON’T IGNORE IF YOUR CAR BATTERY IS WEAK OF DEFECTIVE

When a battery is weak or defective, it can cause the alternator to work harder and potentially fail prematurely. The alternator will constantly try to charge the weak or shorted battery, leading to overheating and increased stress on its components. This can eventually shorten the alternator's lifespan and may require both the battery and alternator to be replaced.

How a defective battery affects the alternator
* Increased strain: A bad battery can't hold a charge, so the alternator must continuously generate power to try and charge it, making it work much harder than it should.
* Overheating: The extra strain can cause the alternator to overheat, which may lead to a burning smell of rubber or electrical wires.
* Shortened lifespan: The excessive and constant workload can wear out the alternator's components faster, leading to premature failure.
* Power draw: If the battery has a faulty rectifier, it can allow the alternator to draw power back from the battery when the engine is off, which drains the battery overnight and can put an additional load on the alternator.

What to do
* Don't ignore symptoms: A warning light on the dashboard, dimming lights, or a dead battery are all signs of a problem with the charging system, which is a sign the battery needs to be replaced.
* Get a diagnosis: A mechanic can test both the battery and alternator to determine which part is faulty. It's important to replace the bad battery to prevent further damage to the alternator.

AVAIL A FREE CHECK UP BY A BATTERY SPECIALIST.

CONTACT US NOW.

Extend Trading & Services - 09989513040

21/08/2025

Battery na sumasabog is back 😆

21/08/2025

https://www.facebook.com/share/19sXeEsZGH/?mibextid=wwXIfr

Battery na sumasabog is back 😆

12/08/2025

AVOID DISCHARGING, OVER-DISCHARGING YOUR CAR BATTERY

A lead-acid battery that cannot maintain voltage typically has a problem with sulfation, where lead sulfate crystals build up on the plates and reduce the battery's ability to store and release energy. This can be caused by over-discharging, undercharging, or simply aging. Other potential issues include a dead cell, short circuit, or internal damage.

Here's a more detailed breakdown:
1. Sulfation:
* What it is:�When a lead-acid battery discharges, lead sulfate forms on the plates. If the battery is left discharged for extended periods, this lead sulfate can crystallize and become difficult to convert back to usable materials during charging.�
* Consequences:�Sulfation reduces the battery's capacity and voltage output, making it unable to hold a charge as effectively. �
* Causes:�Over-discharging (leaving the battery discharged for too long), undercharging (not fully charging the battery), and simply aging contribute to sulfation. �
2. Other Potential Issues:
* Dead Cell:�A battery with a dead cell (a cell that has completely failed) will not be able to reach its full voltage or maintain a stable voltage. �
* Short Circuit:�An internal short circuit can cause the battery to lose voltage rapidly and may even cause the battery to read 0 volts. �
* Internal Damage:�Physical damage to the battery plates or other internal components can also lead to voltage instability. �
3. Consequences of Voltage Instability:
* Reduced Battery Life:�If a lead-acid battery cannot maintain voltage, its lifespan will be significantly shortened. �
* Poor Performance:�Dim lights, slow cranking (in vehicles), and reduced run time for devices powered by the battery are all common consequences of voltage instability. �
* Safety Hazards:�In some cases, a severely damaged battery can pose a safety risk, especially if it's overcharged or short-circuited. �
4. What to do:
* Charge Properly:�Ensure that you are using a compatible charger and that you are charging the battery according to the manufacturer's recommendations. �
* Avoid Over-Discharging:�Do not let the battery discharge completely, and recharge it promptly when it's discharged. �
* Consider Regular Battery Maintenance
* Regular battery is impotent in extending the lifespan of your battery. Have you battery checked every 6 months.�
* Replace the Battery:�If the battery is severely sulfated, damaged, or has a dead cell, it may need to be replaced. ��Call or Text EXTEND TRADING & SERVICES for your FREE CAR BATTERY MAINTENANCE AND SERVICES at 09989513040

12/06/2025

GET PAID FOR YOUR REFERRAL!

YOU CAN HELP YOUR FRIENDS RESCUED BECAUSE OF BATTERY & STARTER PROBLEMS AND EARN WHEN YOU REFER THEM TO EXTEND 24/7 RESCUE

For each friend you refer for RESCUE, you get a 25% of the minimum rescue service fee as referral fee. If in case replacement for a new battery is needed you get 5% of the invoice price.

It’s a WIN-WIN.

HOW IT WORKS? Just let your friend send a text message "RESCUE" to 09989513040. After receiving their text EXTEND will call them and ask the details of their request.

RESCUE OPERATION is available anywhere from BINAN to CALAMBA. Lay-by area or gasoline stations inside the SLEX from CARMONA to CALAMBA.

Referral Fee:
25% for Rescue Service Fee
5% for Battery Sales (Invoice Price)

29/05/2025

BATTERY CORROSION
Battery corrosion occurs naturally and usually doesn't signify a vehicle problem. If you let it build up, though, it can stop your car in its tracks.

If you’re like many people, you don’t lift the hood of your car unless you really have to. If the car is working well, that means it could be years before you get a look at what’s underneath. That includes the battery terminals, which can develop a coating of bluish-white corrosion during that time.

A corroded battery will still start your car—at least until the corrosion gets bad enough to interfere with the electrical connection. If that happens, you might get stuck on a road in the middle of the night, and if you’re not the type who carries tools in the car, you could find yourself waiting in the cold for roadside assistance without the ability to start your car to stay warm.

Why do batteries corrode, what does corrosion mean about the state of your vehicle, and how can you prevent it? With the help of automotive repair experts, this post answers these questions.

WHAT CAUSES BATTERY CORROSION?
Standard automobile batteries contain a sulfuric acid solution that acts as an electrolyte, and it’s predominantly responsible for any corrosion on the terminals. This acid naturally releases hydrogen gas, which escapes through vent openings to prevent a dangerous hydrogen buildup inside the battery. When this corrosive gas contacts the metal terminals, a chemical reaction takes place that produces the corrosion you see. Moisture and salt in the air speed up the reaction.

This process is unavoidable, which is actually good news in a way. It means that you don’t need to be alarmed if you see corrosion on your battery terminals. However, if you don’t want to get stuck out in the cold, you should remove it and take steps to prevent more from forming.

CAUSES OF EXCESSIVE CORROSION
In normal conditions, it takes about three years for battery terminals to develop enough corrosion to need cleaning. If your terminals become noticeably corroded before that time, or if the corrosion is unusually heavy, here are some possible reasons:

1. Leaking battery
The battery casing could be cracked, allowing the acidic electrolyte to seep out. If the crack is near the terminals, corrosion will build up quickly.

2. Overheating
Corrosion occurs more quickly at higher temperatures, which means it can build up faster in the summer than in the winter. Excessive corrosion can also be a sign that the car’s cooling system isn’t working properly and the engine is overheating

3. Overcharging and Undercharging
When the battery gets overcharged, the electrolyte releases hydrogen gas at a faster rate, producing excessive corrosion on both terminals. This is a sign that the car’s voltage regulator isn’t working properly.

If the battery is undercharged, you’ll probably notice more corrosion on the negative terminal than on the positive one. This happens because the car’s electrical system is drawing too much power.

4. Old battery
The expected life of a car battery is two to three years. If you see excessive corrosion (and you can rule out other causes), it’s probable that the battery has reached the end of its service life and can no longer hold a charge.

EXTEND THE LIFESPAN OF YOUR BATTERY. Avail our FREE REGULAR BATTERY MAINTENANCE every 6 months.
Call or Text 09989513040.

25/04/2025

HOW TO PROPERLY USE JUMPER CABLES

When you consider the potential for property damage and personal injury, it's wise to avoid making any such mistakes. That means you need to learn the correct way to connect and disconnect jumper cables. Here's a brief jumper cable primer.

1. Ensure both vehicles are in close enough proximity for cables to reach the batteries.

2. With hoods raised, and the vehicles turned off, locate the batteries and ensure the positive and negative charging posts are exposed.

3. Take the positive cable charger — it should be red or have a prominent + sign on it — and connect it to the positive battery post, which should also be labeled with a + sign.

4. Take the negative cable charger — it should be black or have a prominent – sign on it — and connect it to the negative battery post, which should also be marked with a – sign.

5. Turn on the vehicle with the working battery and allow it to idle for anywhere from 5 to 10 minutes.

6. Now turn the ignition in the vehicle that had the depleted battery. The vehicle should start.

Assuming the jump works, it may help to leave both vehicles connected and running for up to 30-minutes to ensure the depleted battery properly charges. And if the jump doesn't work, it's possible the battery is fully dead and needs to either be replaced or at least recharged. To disconnect the cables, remove the negative clamp from each vehicle first, then remove the red, being sure not to touch them together in the process.

In case you need RESCUE ASSISTANCE (within Binan and Calamba Laguna) contact EXTEND TRADING & SERVICES at 09989513040.

“SERVICE FIRST BEFORE SALES”

21/04/2025

WHAT HAPPENS IF YOU ACCIDENTALLY REVERSE JUMPER CABLES?

Many vehicle owners have found themselves unable to start their car due to a dead battery. While most might call a car battery specialist, some might find it more convenient to grab jumper cables and jump the dead battery themselves.

There are, of course, many factors to consider if you are bent on jumping your own car battery, but when you are connecting jumper cables, it is essential that you make sure to connect them correctly, as failure to do so could potentially lead to a short circuit, resulting in serious damage to any connected battery or vehicle, and possible injury to any people in the immediate area.

Jumper cables are designed to transport car-starting voltage from one battery to another, and a short circuit created by connecting a positive charging cable to a negative battery post (or vice versa) will likely disable the battery permanently. It can also damage the jumper cables. Likewise, the surge of electricity could lead to blown fuses and even destroy the vehicle's electrical components. Apart from the possibility of electrical shock, reversing the cables may also create sparks that could ignite the hydrogen gas vented by some car batteries.

For rescue call or text EXTEND TRADING AND SERVICES at 09989513040.