Li-Ion Battery for Model R (Spare), by Whill

LI-ION BATTERY FOR MODEL R (SPARE) BY WHILL A lightweight, retractable lithium-ion power source as the primary range extender for your Whill and is fully certified and approved for airline travel.

WHILL 25.3V LITHIUM-ION REPLACEMENT BATTERY FOR MODELS R
Product Specifications

Where to find the Serial Number on your Whill Model C2 Power Wheelchair?
Please reference below for your model with an example of the serial number (SN) and where the SN is located on the device. Model Ri: (ex. RA1234U567890)

*Inside of battery compartment*

WHILL Model R Spare Li-ion Battery Buyer’s Guide

The WHILL Model R Spare Li-ion Battery is a high-capacity power source designed specifically for the WHILL Model R power wheelchair. Engineered as an authentic manufacturer component, this battery serves as a reliable primary replacement or a backup unit to expand your daily driving range. By delivering consistent power performance, this rechargeable power unit ensures seamless mobility, allowing users to travel further with peace of mind.

WHILL Model R Power Integration

Designed for full compatibility, this replacement unit interfaces directly with the onboard electrical systems of the WHILL Model R power chair. The precise connection points allow for smooth communication between the power pack and the wheelchair controller, maintaining accurate battery life feedback on the user display. Utilizing an authentic component guarantees optimal power draw, preserving the responsiveness and motor performance of your power chair.

Li-ion Battery Cell Efficiency and Performance

Built with advanced Li-ion chemistry, this power unit offers exceptional energy density while keeping the overall physical weight manageable. Lithium-ion technology delivers steady, reliable voltage output throughout the charge cycle, preventing power drop-offs as the charge depletes. Furthermore, this battery chemistry supports faster recharging times and features a lower self-discharge rate, keeping the power source ready for use even after periods of storage.

Lightweight Replacement and Swappable Design

One of the primary advantages of this power module is its compact and ergonomic outer housing. The integrated handle and low-profile design make removing or installing the battery simple, requiring minimal hand strength. Having a secondary replacement unit on hand enables a quick swap during extended outings, effectively doubling your total travel distance without waiting for a charging wall outlet.

Battery Safety and Charge Management System

Safety and long-term durability are critical features built directly into this unit's internal engineering. The integrated battery management system constantly monitors voltage, temperature, and current levels to protect against overcharging, deep discharging, and short circuits. This smart internal monitoring helps maximize the lifespan of the cell pack, maintaining overall capacity through hundreds of charge cycles.

Travel-Ready Portability and Storage

The compact design of the module supports easy transportation when traveling by car, train, or air. Its durable outer shell protects the internal components from accidental impacts during transport or handling. Whether kept in the trunk as a back-up unit or stored at home on the charger, the unit provides a flexible power strategy that keeps your mobility device active and ready for daily adventures.

WHILL Model R Spare Li-ion Battery Review

The WHILL Model R Spare Li-ion Battery is an essential accessory for users seeking to maximize the utility and range of their power chair. Featuring official manufacturer integration, a lightweight Li-ion architecture, and robust internal safety protections, it delivers reliable energy output for all daily mobility needs. Investing in an extra power module ensures uninterrupted independence and reliable performance wherever you go.