Dependable Replacement for JBL Boombox2 | 7.4V 10400mAh | Extended Playtime | Easy Installation | Outdoor-Ready

Specifications
Brand Name: |
Softchip |
Place of Origin: |
Guangdong, China |
Model Number: |
Sun-inte-213 |
Battery Type |
Rechargeable Li-polymer Lithium Battery |
Size |
21.8*73.6*133mm |
Nominal Voltage |
7.4V |
Volt |
7.4V |
Capacity |
10400mAh |
Usage |
For JBL Boombox 2 bluetooth speaker |
Certificate |
Ce Rosh EMC |
Feature |
Rechargeable/Lightweight/High Energy Density/Long Cycle Life/High and Stable Operating Voltage |
Warranty |
12 months |
OEM/ODM |
Acceptable |
Single gross |
0.570 kg |
Single package size |
13.7X3.7X1.9 cm |
Package |
Factory Neutral Package/OEM Package etc. |
Company Profile

Product Overview
Upgrade your outdoor audio experience with our premium 7.4V 10400mAh Lithium-Ion Replacement Battery, expertly engineered as a direct-fit power solution for the JBL Boombox 2 Bluetooth Speaker.
Designed to restore your speaker’s original performance — or even surpass it — this high-capacity battery delivers extended playtime, stable voltage output, and long-term reliability for uninterrupted music sessions wherever life takes you.
Crafted with advanced lithium-ion cell technology and built-in protection circuits, this replacement battery ensures safe charging, efficient energy conversion, and resistance against overcharging, short circuits, and excessive heat.
With a nominal voltage of 7.4V and a robust 10400mAh capacity (equivalent to ~76.96Wh), it closely matches or exceeds OEM specifications, giving your JBL Boombox 2 renewed endurance for all-day parties, beach trips, camping adventures, and backyard gatherings.
Application
I.Outdoor Adventures: Power your music during hiking, camping, or road trips without worrying about frequent recharging.
II.Beach & Poolside Parties: Enjoy waterproof audio performance paired with long-lasting battery life — perfect for sun-soaked days.
III.Festivals & Tailgating Events: Keep the beats going through extended events where access to outlets is limited.
IV.Home & Backyard Use: Extend daily usage for indoor listening or garden BBQs without constant plugging in.
V.Professional Audio Setups: Mobile DJs and event planners use it as a backup power source for reliable sound on the move.
VI.Eco-Conscious Upgrades: Instead of discarding a fully functional speaker due to a dead battery, choose sustainability by upgrading only the core component.
Workers Production

Product Package

Why Choose Us?
I.OEM-Level Engineering
We collaborate with certified battery labs to replicate factory-grade performance. Each cell is sourced from trusted suppliers and assembled under strict ISO-certified conditions to ensure consistency, safety, and optimal energy density.
II.Extended Capacity Without Compromise
Unlike generic clones that promise high mAh but fail under real-world loads, our 10400mAh battery is lab-tested under continuous discharge simulations. Real-world results show up to 30% longer playback time compared to degraded original batteries.
III.Smart Protection System Built-In
Equipped with a multi-layer PCB protection module that guards against over-voltage, over-current, overheating, and deep discharge — protecting both your speaker and your investment.
IV.Plug-and-Play Installation
No soldering, no technical skills required. The battery comes pre-wired with the correct connector and polarity alignment, allowing for easy DIY replacement in under 15 minutes (tools not included).
V.Comprehensive Warranty & Support
We stand behind every product with a 12-month worry-free warranty and responsive customer support team available via email or live chat. If you have questions during installation or need troubleshooting help, we’re here for you.
VI.Trusted by Global Customers
With shipments to over 50 countries and glowing reviews from audiophiles, travelers, and repair technicians alike, our brand has become synonymous with reliability in the niche of premium audio battery upgrades.
Certification

FAQ
A: Yes, Foshan Softchip Electronics Co., Ltd. is an original factory. We directly engage in product manufacturing, eliminating intermediary links and enabling us to offer customers more cost-effective products.
A: Our company has 13 years of production experience. Over the long-term practice, we have accumulated rich technical and management expertise, allowing us to efficiently and steadily produce high-quality products.
A: Absolutely. We possess complete and advanced production equipment that covers all aspects from raw material processing to finished product assembly. This provides a solid hardware guarantee for the quality of our products.
A: Our company mainly produces batteries for various models of JBL speakers and iPhone batteries. These products undergo strict quality inspections and have stable and reliable performance.
A: There is definitely a guarantee. As an original factory, we have strong production capacity and a stable supply chain system. We can arrange production in a timely manner according to customer needs to ensure on-time and sufficient supply.