🔋 GREENCELL PREMIUM BATTERY
Greencell Apple Watch Series 7 45MM
Replacement Battery 309mAh
3.85V Lithium Polymer | Adhesive Strips Included | 0 Cycle New | Pre-Tested | 12-Month Warranty
⌚ Series 7 45MM 🔋 309mAh ✅ Pre-Tested 🇦🇺 Brisbane Stock
✅ In Stock - Ready to Ship 🛡️ 12-Month Warranty
❓ Frequently Asked Questions
What is a Greencell battery and how does it compare to original Apple batteries?
Greencell is a premium aftermarket battery brand that manufactures high-quality replacement batteries designed to match or exceed original equipment manufacturer specifications. Greencell batteries use new lithium polymer cells manufactured with the same technology as original batteries, featuring quality connectors and PCBA (printed circuit board assembly) that ensure proper communication with your Apple Watch. Unlike refurbished or pulled batteries, Greencell batteries are brand new with zero cycle count, meaning they have never been charged or discharged before. The 309mAh capacity matches the original Apple Watch Series 7 45MM battery specification, providing the same runtime you experienced when your watch was new. Greencell batteries undergo rigorous quality testing using sophisticated equipment to verify capacity, voltage stability, and safety protection functionality before shipping.
What safety protections does this battery include?
This Greencell battery includes comprehensive safety protection circuitry built into the battery management system. Overcharge protection prevents the battery from being charged beyond safe voltage levels, protecting against swelling and thermal runaway. Overheat protection monitors battery temperature during charging and discharging, shutting down operation if temperatures exceed safe thresholds. Overload protection prevents excessive current draw that could damage the battery or connected devices. Short circuit protection instantly disconnects the battery if a short circuit is detected, preventing fire hazards. Temperature control circuitry continuously monitors cell temperature and adjusts charging parameters accordingly. PTC (positive temperature coefficient) cell protection provides an additional layer of thermal protection at the cell level. These multiple layers of protection work together to ensure safe operation throughout the battery's lifespan and meet international safety standards.
What does "0 cycle count" mean for this battery?
Cycle count refers to the number of complete charge and discharge cycles a battery has undergone. A zero cycle count means this is a brand new battery that has never been used, charged, or discharged since leaving the manufacturing facility. Each time you fully discharge and recharge a lithium polymer battery, it counts as one cycle, and batteries typically maintain optimal performance for 500 to 1000 cycles before noticeable capacity degradation. A zero cycle battery provides maximum capacity and longest possible lifespan compared to refurbished batteries that may have hundreds of existing cycles. When you install this Greencell battery, your Apple Watch will show maximum battery health because the battery has full capacity with no wear. This is particularly important for Apple Watch batteries where the small physical size means every bit of capacity matters for achieving all-day battery life.
Are the adhesive strips included and how are they used?
Yes, this Greencell battery includes adhesive strips designed for Apple Watch Series 7 battery installation. The adhesive strips serve multiple purposes during the repair process. First, they secure the battery in the correct position within the watch case, preventing movement that could damage internal components or cause disconnection. Second, the adhesive creates a seal that helps maintain some degree of dust and moisture resistance, though full water resistance may be reduced after any repair. During installation, the old adhesive must be carefully removed from both the battery compartment and watch case using isopropyl alcohol and appropriate tools. The new adhesive strips are then applied to the battery before positioning it in the watch. Proper adhesive application is essential for a secure installation that will withstand daily wear and the stress of wrist movements.
What tools are needed to replace an Apple Watch battery?
Apple Watch Series 7 battery replacement requires specialized tools due to the compact design and waterproof construction. Essential tools include a tri-point Y000 screwdriver for the case screws, a precision prying tool or opening pick for separating the screen from the case, tweezers for handling small connectors and screws, a heat gun or heated mat to soften the adhesive securing the screen, a suction cup for lifting the display, isopropyl alcohol for cleaning adhesive residue, and anti-static equipment to prevent electrostatic discharge damage to sensitive components. Many technicians also use a battery disconnector tool and magnification equipment for precision work. The screen must be carefully lifted without damaging the Force Touch sensor gasket or display cables. Given the complexity and the risk of damaging the expensive display assembly, professional installation by experienced watch repair technicians is highly recommended for this repair.
Will my Apple Watch still be water resistant after battery replacement?
The Apple Watch Series 7 has a WR50 water resistance rating from the factory, meaning it can withstand water pressure equivalent to 50 meters depth. This protection relies on precise factory-applied seals around the display, digital crown, and speaker ports. When the watch is opened for battery replacement, the original adhesive seal between the display and case is broken. While professional repair shops can apply new adhesive and attempt to restore water resistance, achieving the original WR50 rating outside of an Apple authorized service centre is very difficult. The tolerances and sealing materials Apple uses are specific to their manufacturing process. After any third-party battery replacement, you should treat your Apple Watch as having reduced or no water resistance. Avoid swimming, showering, or exposing the watch to water to prevent damage to internal components. Some moisture resistance may be retained for incidental exposure like hand washing.
What do the CE and ROHS certifications mean for this battery?
CE certification indicates that this battery meets European Union safety, health, and environmental protection standards for products sold within the European Economic Area. For batteries, CE certification verifies that the product has been tested for electrical safety, electromagnetic compatibility, and proper labeling requirements. ROHS (Restriction of Hazardous Substances) compliance means the battery is manufactured without dangerous substances including lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, and polybrominated diphenyl ethers. ROHS compliance is particularly important for lithium batteries as it ensures environmentally responsible manufacturing and safe disposal at end of life. Greencell's manufacturer maintains strict quality control processes to achieve and maintain these certifications, with each battery tested using sophisticated equipment to verify compliance. These certifications provide assurance that you are purchasing a safely manufactured product that meets international standards.
How do I know when my Apple Watch battery needs replacement?
Several signs indicate your Apple Watch Series 7 battery needs replacement. The most obvious is significantly reduced battery life, where your watch no longer lasts through a full day of normal use when it previously did. You can check battery health in Settings then Battery then Battery Health on your watch, where a maximum capacity below 80 percent typically indicates replacement is beneficial. Other symptoms include the watch shutting down unexpectedly despite showing remaining charge, unusually slow charging, the watch becoming warm during normal use or charging, or physical swelling of the battery which may cause the screen to lift away from the case. Battery swelling is a safety concern and the watch should not be used until the battery is replaced. If your watch is more than two to three years old and experiencing any of these symptoms, a new Greencell battery can restore original performance and extend the useful life of your device.
What does the 12-month warranty cover?
Our 12-month warranty covers manufacturing defects in the Greencell battery including failure to hold charge, premature capacity loss, voltage irregularities, connector defects, and protection circuit failures that appear during normal use. The warranty begins from the date of purchase and covers the battery itself, not installation labor. To make a warranty claim, you must provide proof of purchase and documentation of the issue such as screenshots of battery health or photos of visible defects. The warranty does not cover physical damage from drops or impacts, damage caused by water exposure, damage from improper installation, batteries used in incompatible devices, or normal capacity degradation after extensive use. For professional installers, we recommend testing the battery before final assembly to identify any manufacturing defects within the return period. Defective batteries can be returned for replacement or refund according to our warranty policy.
How long does Australian shipping take?
This Greencell Apple Watch Series 7 battery ships from our Brisbane warehouse in Forest Lake with standard dispatch within two to four business days after order confirmation. Brisbane metro customers including Forest Lake, Inala, Richlands, Springfield, and Ipswich typically receive orders within three to six business days via Australia Post with full tracking. Regional Queensland locations including Gold Coast, Sunshine Coast, Toowoomba, Cairns, and Townsville receive deliveries within four to seven business days. Interstate shipments to Sydney, Melbourne, Adelaide, Perth, Hobart, Darwin, and Canberra arrive within five to eight business days with tracking visibility throughout. Express shipping options are available for urgent repairs requiring delivery within two to three business days to major metropolitan areas. Brisbane local pickup is available at our Forest Lake store at Shop 3a, 152 Woogaroo Street for same-day collection during business hours. Lithium batteries are shipped according to Australian dangerous goods regulations.
🔋 GREENCELL PREMIUM BATTERY
Apple Watch Series 7 45MM
Replacement Battery 309mAh
3.85V Li-Po | Adhesive Inc. | 0 Cycle | 12-Month Warranty
🔋 309mAh ✅ Pre-Tested 🛡️ 12 Months 🇦🇺 Brisbane
📍 Shop 3a, 152 Woogaroo St, Forest Lake QLD 4078
