MB-234 Ultimate

battery replacement for Fujifilm NP-W235

Ultimate is a special class of Mathorn brand batteries that represents a long-awaited technological breakthrough in dedicated battery substitutes. The new MB-234 Ultimate model utilizes newly designed high-current cells with a real capacity of 2600mAh

Longer runtime than manufacturer's battery

In 2023, Mathorn Ultimate batteries set a new standard in camera power solutions with their groundbreaking 2400mAh cells. Building on this success, Mathorn is now introducing an even more powerful version – the Ultimate 2600.

The new 2600mAh cells provide a 20% longer runtime compared to the OEM batteries and  27% longer than Mathorn Standard 2250mAh. The increase in performance compared to standard 2200mAh batteries from other manufacturers is even more significant, reaching up to +53%.

Built for Heavy-Duty Performance

Mathorn and Mathorn Ultimate batteries are crafted for demanding, heavy-duty tasks, excelling in applications like 8K video recording. The Ultimate 2600 line raises the bar with superior performance, offering up to 29 extra minutes of runtime over standard replacement batteries with a capacity of 2200mAh.

Fast, fafe, and convenient USB-C charging

With Mathorn batteries, there’s no need for a specialized charger or direct access to power outlets. Equipped with a USB-C charging module, these batteries connect seamlessly to universal USB chargers or power banks, making charging both efficient and secure. Choosing USB-C charging over basic chargers without safety features provides additional protection and enhances battery longevity.

Perfect for cccasional and regular photography

Low-power electronics and advanced NCR cell technology enable Mathorn batteries to maintain just 0.5% self-discharge per month. This feature makes Mathorn batteries ideal for both everyday and occasional photography, ensuring they’re ready whenever needed.

Future-proof power for new cameras

Our proprietary testing method optimizes Mathorn battery efficiency, matching the power profiles of today’s most demanding cameras. With high-performance components selected to provide reliable energy, Mathorn batteries are built to serve as your dependable power source, even as you upgrade to newer camera models.

Significantly lower operational heat

Powered by high-current lithium-ion cells, Mathorn batteries handle twice the power demands of conventional cells. Their superior efficiency reduces battery and camera heating, extending both the battery’s and the camera’s life.

Proven quality and performance

Mathorn batteries undergo rigorous testing with specialized photography and lab equipment to ensure top performance aligns with technical specifications. Each battery’s stated capacity reflects its true value, even under heavy usage, giving you confidence in its durability and performance.

Best compatibility with your camera

Built to meet the latest camera standards, Mathorn batteries are tested for compatibility in mechanical, electronic, and software aspects, ensuring smooth operation with optimal performance.

Click and check compatibility

Guarantee and safety

Designed for versatile use, each Mathorn battery is safeguarded with modern active and passive protections to minimize risks and extend reliable operation. For your peace of mind, every Mathorn battery comes with a comprehensive 3-year warranty.

Extended lifespan for lasting use

Mathorn batteries leverage advanced NCR lithium-ion technology and safety features to withstand up to 500 full charge and discharge cycles. With no memory effect and a high capacity, these batteries allow frequent partial recharging, significantly extending their lifespan.

The most important features

High performance for intensive workloads

  • Optimized for high-stress applications, ready to handle 8K video shooting demands.
  • Reduced battery and camera heat during recording and image transfer for a more reliable operation.
  • Enhanced performance ideal for high-resolution, continuous shooting tasks.
  • Designed to last up to twice as long as conventional batteries, even with intensive usage.
  • Built with a 95% power reserve surplus to meet or exceed the requirements of the latest cameras (as of October 30th, 2024).

Proven capacity and long-lasting cells

  • Capacity and efficiency rigorously tested under real-world conditions to ensure reliability.
  • Cells last up to 60% longer compared to low-current alternatives.
  • Minimal self-discharge rate of less than 0.5% per month, ensuring readiness over extended periods.

Flexible, intelligent charging options

  • Dual charging modes: compatible with traditional dedicated chargers and USB-C connections.
  • Battery-controlled USB-C charging for optimal speed and safety, including an LED charge status indicator.

Extended battery lifecycle and safety features

  • Rated for up to 500 full charge/discharge cycles with no memory effect.
  • Comprehensive protection against thermal, current, and voltage risks, including over-discharge, over-charging, and short-circuit prevention.
  • Durable housing crafted from high-temperature-resistant, self-extinguishing V1 material.

Long-term warranty

  • Backed by a 3-year warranty to ensure long-term performance and user confidence.

Technical specification

Parameter Value
Nominal capacity 2600 mAh
Minimum capacity under load 1C 2520 mAh 
Nominal voltage 7.2 V
Maximum charging voltage 8.4 V
Standard charging current 520 mA
Maximum charging current via USB-C 1820 mA
Maximum charging current 19.2 Wh
Energy +0° ~ +40°C
Range of charge temperatures -20° ~ +60°C

1 – the rate of discharging of the battery stored at a temperature below 25°C and humidity up to 60%