# Battery pack ReplaceBase for iPhone 11 Pro Max 3969mAh replacement battery

**URL:** https://aio.lv/en/product--replacebase-rbsku13810--11220388
**Data updated:** 2026-02-14 19:37 (EET)
**Category:** Portable Device Batteries
**Manufacturer:** ReplaceBase
**Manufacturer code:** RBSKU13810
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 21.49 €
**Prices and availability valid until:** 2026-08-14 23:59
**Price without VAT (21%):** 17.76 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--replacebase-rbsku13810--11220388

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.07.2026 | free |
| Pickup points | 03.08.2026 | 1.89 EUR |
| Courier delivery to door | 03.08.2026 | 4.99 EUR |

## Summary description

ReplaceBase replacement battery pack designed for iPhone 11 Pro Max with a rated capacity of 3969mAh. Intended as a direct replacement for the original internal battery, it restores device runtime for calls, apps and media. Suitable for repair or DIY replacement by a technician, it helps extend daily battery life and maintain phone portability.

## Long description

ReplaceBase replacement battery pack for iPhone 11 Pro Max provides a rated capacity of 3969mAh and is designed as a direct internal battery replacement for compatible devices. The pack restores usable battery runtime for calls, apps and media playback, allowing the device to regain original endurance characteristics when the original battery has degraded. The unit is intended for installation by a qualified technician or an experienced DIY user familiar with smartphone disassembly and reassembly.
Advantages
The ReplaceBase battery offers a high-capacity cell closely matching the original iPhone 11 Pro Max specifications to provide stable voltage and consistent discharge behavior. It is manufactured to fit the internal battery compartment and connectors of the device, ensuring secure mechanical and electrical connection. The pack supports normal charging and system power management functions when installed correctly, and helps extend practical daily runtime without changing user habits.
Suitable for
Replacing an aged or worn internal battery in an iPhone 11 Pro Max
Repair shops performing battery replacement services
Experienced DIY repairs to restore full-day battery life
Refurbishment projects for used iPhone 11 Pro Max units
Key specifications
Rated capacity: 3969 mAh
Form factor: internal lithium-ion battery pack designed for iPhone 11 Pro Max
Compatibility: models and dimensions matching iPhone 11 Pro Max internal battery compartment
Connector type: device-specific flex connector for direct replacement
Typical operating voltage: compatible with original device power management (nominal cell voltage consistent with smartphone use)
How to use
Power the device down and follow standard safe-disassembly procedures for iPhone 11 Pro Max before starting the replacement. Remove the display assembly carefully, disconnect the original battery connector, and detach any adhesive strips or mounts securing the old battery. Install the ReplaceBase battery into the compartment, connect the flex connector to the motherboard, and ensure the battery is seated and secured according to the device’s repair guidelines. Reassemble the display and any removed components, then charge the device and verify normal boot and battery reporting in system settings.
Usage recommendations
Use appropriate tools and ESD precautions; avoid puncturing or bending the battery. If unsure about any step, seek professional repair service. After installation, calibrate the battery by charging to 100% and allowing a full discharge cycle if recommended by the technician. Dispose of the old battery following local electronic waste regulations.

## FAQ

### How much does the ReplaceBase battery for iPhone 11 Pro Max 3969mAh cost, and is it available for purchase?

The price is 21.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 11 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 29.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All ReplaceBase products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized ReplaceBase service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty