How long should the second charge of a new battery be?

3 Answers
StNolan
07/23/25 7:01pm
Before the second charge of a new battery, it should be charged when the power is almost exhausted, and the charging time should be 8-11 hours. The following is an introduction to the battery: Introduction: The battery is a type of storage battery, also known as an accumulator. Its working principle is to convert chemical energy into electrical energy. The battery commonly referred to by people is a lead-acid battery, which is mainly composed of lead and its oxides as electrodes and sulfuric acid solution as the electrolyte. Classification: Ordinary battery, dry-charged battery, maintenance-free battery. Principle: The negative electrode is made of a lead plate filled with sponge-like lead, the positive electrode is made of a lead plate filled with lead dioxide, and 22-28% dilute sulfuric acid is used as the electrolyte. During charging, electrical energy is converted into chemical energy, and during discharging, chemical energy is converted back into electrical energy.
Was this review help?
15
0
Share
Daisy
08/10/25 2:34pm
Hey, I've been driving for many years, and the second charging of a new battery is quite crucial—don't rush it or delay it too long. Generally, I use a slow charger for about 8 to 10 hours, like plugging it in on Friday night and waking up to a fully charged battery in the morning. This way, the battery can be fully rejuvenated. Remember to place the battery in a well-ventilated spot in the garage before charging to avoid overheating and potential fires. Why does it take so long? After the first use, a new battery might have slight discharge, and the second slow charge helps balance the electrodes to prevent aging, extending its lifespan by several years. I always do it this way—it saves money and hassle, reducing the risk of breakdowns on the road. In short, adjust according to your charger type; if it has smart features that automatically stop charging, it’s even more convenient.
Was this review help?
10
2
Share
Expand All
McRose
09/22/25 9:30am
I just got a new car and handle all the battery maintenance myself. For the second charge, the duration should be moderate—I usually set it for around 9 hours, using a timer socket to control the process, stopping when the charger indicator turns green. Don’t forget to check if the battery terminals are clean, as a bit of dust can cause poor contact. This charging method not only ensures sufficient power but also prevents overcharging damage to the electrodes—simple and efficient. Don’t believe those claims about charging for a full day and night; it wastes electricity and harms the battery core. My experience shows that maintaining a low current for slow charging is sufficient. Doing it right once can extend the battery’s life by a year, avoiding frequent replacements and saving money.
Was this review help?
12
1
Share
Expand All
More Forum Discussions

Is the Nissan Qashqai a sedan or an SUV?

Nissan Qashqai is a crossover vehicle that combines the characteristics of SUV, MPV and sedan. Appearance: The Qashqai integrates various excellent features of high-end hatchback sedans, as well as design styles of SUV and HB. Its overall shape is fashionable and avant-garde, and the smooth body lines have been praised by netizens. Netizens commented that "this car is quite dynamic with a strong sense of modernity, combining the elegance of a sedan and the boldness of an off-road vehicle. Handling: The overall driving experience is quiet and comfortable; the high seating position provides a broad field of vision; the steering wheel is precise, light, and moderately weighted; the chassis is solid with high ground clearance, offering strong off-road capability and good high-speed stability; the brakes are responsive, and the sound insulation is effective.
16
5
Share

What Causes the Chassis Noise When the Elantra Passes Over Bumpy Roads?

The causes of chassis noise when the Elantra passes over bumpy roads include shock absorber issues, loose components, and front/rear axle faults. Appearance: The front of the car features dynamic lines and surfaces, giving it a powerful look. The wavy waistline along the side of the body is one of the Elantra's distinctive design elements. The smooth, slender wavy waistline highlights the car's agility and enhances the elegant and sophisticated visual appeal of the side profile. The integrated rear bumper and taillight lines create a strong and cohesive visual effect for the rear. Performance: The 1.6L model is equipped with Hyundai's α-CVVT engine, delivering a maximum power of 82kW at 6000rpm and a maximum torque of 145.1Nm at 4500rpm. The 1.8L model features Hyundai's β-DOHC engine, which produces a maximum power of 96kW at 6000rpm and a maximum torque of 162Nm at 4500rpm. The application of CVVT technology not only enhances engine performance but also improves fuel efficiency, thereby reducing fuel consumption and emissions.
4
1
Share

Under what circumstances can the grille of the new Sylphy be closed?

The new Sylphy's active grille can close when the engine has just started and the temperature is low, allowing the engine to warm up quickly. Powertrain: Equipped with a 1.6L naturally aspirated engine that meets the China VI emission standards, delivering a maximum power of 99kW (135 horsepower) and a peak torque of 159Nm, paired with a CVT transmission. Intelligent Features: The new vehicle is equipped with the latest Nissan Connect super-smart system, featuring an 8-inch HD capacitive touchscreen. It includes functions such as voice control and remote control of the vehicle. Voice control allows for simple commands to operate the online entertainment system, all-time online navigation, Bluetooth calls, dash cam, and air conditioning. The remote monitoring and control function enables seamless connectivity with smartphones via a smart app, keeping users fully informed about their vehicle's status and allowing remote control of door locks, lights & horn, engine, and air conditioning based on specific needs.
12
1
Share

Does the Audi Q5 need spark plug replacement at 20,000 kilometers?

Audi Q5 does not require spark plug replacement at 20,000 kilometers. Audi Q5 spark plug replacement cycle: Under normal maintenance conditions, replacement is recommended after driving 40,000 to 60,000 kilometers. However, this may vary depending on the brand and engine type. It is advisable to follow the user manual. You can refer to the following maintenance standards for replacement: Platinum spark plugs should be replaced at 40,000 kilometers, ordinary nickel alloy spark plugs at 20,000 kilometers, and iridium spark plugs at 60,000-80,000 kilometers. How spark plugs work: The spark plug's ground electrode is connected to the metal shell, which is threaded into the engine block through the cylinder head. The insulator primarily serves to isolate the metal shell from the center electrode. The terminal nut is the part of the spark plug that contacts the high-voltage coil. When current passes through the terminal nut and the center electrode, it ionizes the medium between the center electrode and the ground electrode to generate a spark, thereby igniting the air-fuel mixture in the cylinder.
16
4
Share

Where is the Alto fuse box located?

The Alto fuse box is located next to the engine, in front of the steering wheel. You can see it by opening the hood. Introduction to automotive fuse boxes: An automotive fuse box is a container designed to hold vehicle fuses. Common injection molding materials include: plastic, nylon, bakelite, and PBT engineering plastics, each with varying degrees of high-temperature resistance. Classification of automotive fuse boxes: By fuse installation type: can be divided into fuse tube boxes and fuse strip boxes; By fuse size: can be categorized as large fuse boxes, medium fuse boxes, and small fuse boxes; By material: can be classified as plastic fuse boxes and bakelite fuse boxes; By environmental standards: can be divided into eco-friendly fuse boxes and non-eco-friendly fuse boxes; By installation method: can be grouped as lead-type fuse boxes, circuit board-type fuse boxes, and instrument panel-mounted fuse boxes.
10
0
Share

When is the Vehicle Purchase Tax Due?

Vehicle Purchase Tax must be paid within 60 days from the date of vehicle purchase. Below is relevant information about Vehicle Purchase Tax: 1. Vehicle Purchase Tax: This is a tax levied on entities and individuals purchasing specified vehicles within China, which evolved from the Vehicle Purchase Surcharge. 2. Taxable Amount Calculation: The Vehicle Purchase Tax is calculated based on an ad valorem rate. The calculation formula is: Taxable Amount = Taxable Price × Tax Rate. For imported vehicles for personal use, the taxable price is calculated as: Taxable Price = Customs Duty-paid Price + Customs Duty + Consumption Tax.
14
1
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.