Klvr is set to showcase its groundbreaking Charger Pro solution at ISE 2026, taking place from February 3-6 at Fira de Barcelona. The innovative technology promises significant cost reductions and performance enhancements for the live entertainment and professional audio-visual (AV) markets. Positioned at stand 5N900, Klvr will demonstrate how its rechargeable battery system is transforming the industry by eliminating the dependency on single-use batteries.
The Charger Pro, designed specifically for sound engineers and AV professionals, is already making waves in music venues, production studios, conference halls, universities, houses of worship, and the hospitality sector. By replacing disposable batteries with Klvr’s rechargeable alternatives, users can drastically cut costs and reduce environmental impact.
Industry Leaders Endorse Klvr’s Solution
Antonis Stantzos, CTO of Greek broadcaster Alpha TV, highlighted the impact of adopting Klvr’s technology. “We used to rely on 20,000 disposable batteries every year to keep mics and other devices running during live productions – it was expensive, messy, and a constant headache for our team. Now we use just over 400 rechargeable Klvr batteries, giving us reliable capacity and long-term cost savings. It’s a no-brainer for any broadcaster,” he stated.
Founded by sound engineers and music artists, Klvr developed the Charger Pro to meet the specific needs of professional audio environments. Traditional AA and AAA batteries, while still prevalent in wireless microphones and in-ear monitoring systems, often end up discarded with unused capacity. Proprietary rechargeable solutions from major manufacturers can be costly and incompatible with devices from different vendors, while consumer-grade rechargeables often lack the necessary voltage and reliability for professional use.
Performance and Reliability in Critical Settings
Trond Hernes, stage manager of the Norwegian Radio Orchestra (KORK), emphasized the importance of reliability. “Our AV team and musicians need total confidence that every in-ear monitor will work flawlessly throughout rehearsals, broadcasts or major concerts,” Hernes explained. “You can’t risk using commercial rechargeables when performers are on stage – they’re far too unreliable and could cause devices to cut at any moment. Charger Pro gives us rock-solid performance and complete visibility into battery life and recharge cycles. Klvr lets us focus our energy on creativity and delivering the best shows, instead of wasting time and money on guesswork and new disposables.”
Mikael Svensson, backline engineer at Overkill Backline, which supports artists like Per Gessle and the iconic Swedish pop rock duo Roxette, also praised the solution. “Shipping and travel costs rack up quickly when you’re taking kilos of production gear on tour with bands and artists. Charger Pro is light, compact and perfect for touring. The batteries are excellent quality and work across any kind of device, so you’re not locked into proprietary products from audio manufacturers. We now do one Klvr battery change for every three we used to with regular batteries, taking away so much cost and complexity from global tours.”
A Comprehensive, Cost-Effective Solution
Klvr’s Charger Pro offers a simple, flexible, and affordable solution with a lightweight, 19” rack-mounted charger and high-performance, standard-sized AA and AAA batteries. Each Klvr battery boasts 1200 charging cycles and a 30% higher runtime than typical commercial rechargeables. The system includes a linear discharge curve and monitoring capabilities to maximize performance and power visibility throughout the battery’s lifetime.
The Charger Pro rack unit can hold up to 48 AA or AAA batteries, providing the flexibility to recharge batteries for various professional devices simultaneously. AA batteries recharge in under three hours, while AAA batteries take just two hours. An intuitive front display and the user-friendly Klvr Control system allow AV professionals to monitor battery levels, recharge times, and adjust settings from connected laptops. Additionally, the lightweight Klvr Pouch, with a 48-battery capacity, simplifies travel and battery transport through airport security or to remote production locations.
Driving Change in the Industry
Stian Sagholen, CEO and Founder of Klvr, noted the growing demand for their solution. “Artists, audio engineers, studios and facilities are all too aware of the huge costs of millions of disposable batteries that are used every year,” Sagholen said. “Consumer rechargeables aren’t good enough for concerts, corporate events, university lectures or live production. AV teams need a pro-grade, reusable alternative that they can rely on in critical live environments. We’re seeing a surge in momentum as users see first-hand how switching to Klvr helps them lower costs, simplify their work and deliver better performances on any stage.”
The Charger Pro has been successfully deployed by a range of organizations and is available through an expanding international distributor network. This reflects the increasing demand for cost-effective, professional-grade rechargeables that ensure high performance in live environments.
