Battery PATONA 2797 for HP EliteBook G3/G4

Name: Battery PATONA 2797 for HP 2797
Brand: PATONA
SKU: 11829445
Price: 114.49 EUR
Availability: InStock

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Battery PATONA 2797 for HP EliteBook 745/755/840/850 G3 G4, Li-Ion 4100 mAh, black/yellow

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Short description

Replacement laptop battery PATONA 2797 compatible with HP EliteBook 745, 755, 840 and 850 G3/G4 series. Lithium‑Ion (Li‑Ion) chemistry with 4100 mAh capacity, designed to restore mobile power for productive use. Lightweight (0.187 kg) spare part in black and yellow finish; suitable for on‑the‑road work, business use and battery replacement repairs.

Available for order: 1 pcs.

Warranty: 2 Years

SKU: 11829445

Manufacturer: PATONA

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Deliver the order:

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to the Customer Service Center at Kengaraga 2b, Riga

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Customer service center

2b. Kengaraga str., Riga, Latvia, LV-1063

08.07.2026 {{selectedOffer.officeDeliveryString}}

free

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From 4.99 € (Weight: 0.19 kg)

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From 1.99 €

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Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment

36 months installment: from 3.18 euros per month

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Product information

Description

PATONA 2797 is a replacement Li‑Ion battery designed for HP EliteBook 745, 755, 840 and 850 G3/G4 series notebooks. With a nominal capacity of 4100 mAh, this compact black and yellow battery restores portable power for everyday business tasks and fieldwork. The unit is lightweight (approx. 0.187 kg) and intended as a spare part for users who need reliable runtime recovery without changing the original laptop hardware design.

Advantages

This PATONA battery uses Lithium‑Ion technology to deliver consistent discharge characteristics and stable voltage under typical laptop loads. The 4100 mAh capacity offers a balance between runtime and weight for mobile professionals. Its form factor and connector compatibility match HP EliteBook 745, 755, 840 and 850 G3/G4 models, enabling straightforward replacement. The black and yellow finish corresponds to PATONA’s visual design while maintaining OEM-like fit.

Suitable for

Replacing a worn or failing battery in HP EliteBook 745/755/840/850 G3 and G4 laptops
Extending mobile runtime for business travel and remote work
Service and repair shops performing battery replacements

Key specifications

Battery technology: Lithium‑Ion (Li‑Ion)
Nominal capacity: 4100 mAh
Weight: approximately 0.187 kg
Colour: black and yellow
Compatible laptop series: HP EliteBook 745, 755, 840, 850 G3 and G4

How to use

Power down the laptop and disconnect any external power sources. Remove the existing battery following the laptop manufacturer’s service instructions or user manual to avoid damage. Insert the PATONA 2797 battery into the battery bay until it locks in place and reconnect any retaining screws or latches required by the device. Reconnect the AC adapter and allow the battery to charge fully before first use to ensure proper calibration and optimal initial performance.

Usage recommendations

Store and operate the battery at moderate temperatures and avoid prolonged exposure to very high or very low temperatures. For longer battery life, perform regular charge cycles, avoid deep discharges where possible, and use the laptop’s power management settings to reduce unnecessary load. If you are not comfortable replacing the battery yourself, seek assistance from an authorized service centre.

Specifications

Battery technology:: Lithium-Ion (Li-Ion)
Battery capacity:: 4100 mAh
Weight:: 0.187 kg
Product colour:: Black, Yellow

All features

Quantity per pack:: 1 pc(s)

Battery

Battery technology:: Lithium-Ion (Li-Ion)
Battery capacity:: 4100 mAh
Battery voltage:: 11.4 V
Battery capacity type:: Standard
Battery capacity:: 46 Wh
Product colour:: Black, Yellow

Technical details

Type:: Battery
Compatibility:: EliteBook 745, 755, 840, 850 G3 G4
Brand compatibility:: HP

Weight & dimensions

Weight:: 0.187 kg

Packaging data

Package weight:: 271 g
Package type:: Box

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Customer questions

FAQ

How much does the Battery PATONA 2797 for HP EliteBook G3/G4 cost, and is it available for purchase?

The price is 114.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 08.07.2026 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, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

Can Battery PATONA 2797 for HP EliteBook G3/G4 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the Battery PATONA 2797 for HP EliteBook G3/G4 online, and the application process is as simple as possible:

Select the product on the website and add it to your cart;
When placing your order, choose the payment method “Installments”;
Fill in the required details for the lending partner;
Receive a decision within a few minutes.

For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

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 PATONA 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 PATONA 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: battery technology, battery capacity, weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

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