Smart Battery Solutions for Every IndustryOne-Stop Custom Battery Pack Solutions
From high-discharge drone packs to deep-cycle marine power and UPS-grade home storage, VastSea engineers the cell, pack mechanics and BMS around your application — then manufactures it at scale in Shenzhen.
Drone & Robot Batteries
High-discharge packs with smart BMS for UAVs, AGVs and service robots — engineered for power density, flight time and duty cycles.
High-discharge UAV packs engineered for maximum flight time, stable voltage under load and cold-weather reliability.
Duty-cycle optimized packs for AGVs, AMRs and service robots with rugged enclosures and sealed connectors.
E-Mobility Batteries
Reliable high-current packs for e-bikes, e-motorcycles, two-wheelers and three-wheelers — built for daily range and fast charging.
Lightweight downtube and rack packs with grade-A cells, water-resistant housings and smart BMS for shared and personal fleets.
High-current packs delivering motorcycle-grade acceleration and range with active balancing and sealed IP67 housings.
Marine & RV Batteries
Deep-cycle LiFePO4 power for trolling motors, electric boats, RV house systems and campers — drop-in ready and vibration-proof.
Drop-in deep-cycle LiFePO4 packs with double the runtime at half the weight of lead-acid, sealed against spray and humidity.
House-battery systems for RVs and campers with 100% usable capacity, -20°C self-heating and a 10+ year design lifespan.
Energy Storage Batteries
Home energy storage, portable power, off-grid solar and telecom backup — UPS-grade reliability with decade-long service life.
High-voltage 48V platforms with 0.1s BMS response and 99.2% MPPT tracking efficiency for outdoor and backup power.
Residential storage and whole-home backup with <10ms UPS switching and 15+ years of design lifespan.
Maintenance-free storage for solar towers, telecom sites and off-grid installations from -20°C to 60°C.
How We WorkFrom Idea to Mass Production in 4 Steps
Requirement Review
We analyze your application, load profile, runtime target and operating environment, then recommend the right chemistry and format.
Pack & BMS Engineering
Mechanical design, thermal management, BMS parameters and DFM — drawings and specifications confirmed with you before tooling.
Sampling & Validation
Samples undergo cycle, thermal, vibration and ingress testing, with UN38.3-level validation reports before approval.
Mass Production & Support
Wholesale manufacturing with 100% QC, global logistics and responsive after-sales service from our Shenzhen facilities.
Your Application, Our Battery Engineering
Aerial, motive, marine or stationary — if your product needs a smarter battery, our engineers will design it with you. Six foundries and three battery-pack factories stand behind every pack we ship.
Get a Quote Now
Tell us your application, capacity and target specifications — our sales engineers will reply with a tailored quotation within 24 hours.
Inquiry Now