Sumitomo BU-17 Lithium-Ion Detachable Battery Pack, 10.8V, 4560mAh

Keep your fusion splicers powered through long jobs with the Sumitomo BU-17 lithium-ion detachable battery pack. Designed for field technicians and contractors, this battery pack delivers reliable, consistent power (10.8V, 4560mAh) to extend run time and minimize interruptions during fiber optic splicing, telecommunications installs, and security or surveillance network deployments. The detachable design enables quick swaps on-site, reducing downtime and helping teams stay on schedule. Built to meet the demands of field use, the BU-17 provides stable output for accurate splice measurements and dependable performance across multiple cycles. Compatible with Sumitomo T-502S and Q502S series fusion splicers, it integrates seamlessly into existing toolsets and is lightweight for easy transport between job sites. Ideal for network installers, service technicians, and security integrators who need dependable power for monitoring, networking and surveillance system deployments. Add the BU-17 to your toolkit to improve productivity and reduce service interruptions — order now or contact sales to confirm compatibility for your application.

• Extends field runtime: 10.8V / 4560mAh capacity keeps fusion splicers operating longer between charges
• Quick, detachable design reduces downtime with fast swaps for continuous on-site work
• Engineered for reliable performance under load to maintain accurate splice results
• Lightweight and portable for technicians working in telecom, fiber network, security and surveillance installations
• Compatible with Sumitomo T-502S and Q502S series for seamless integration on the job