Custom Sodium-Ion Battery Packs
AceOn's StamiNa+ soft packs are custom 12V sodium-ion battery packs built on safe NaCR32140 sodium-ion cells. Engineered by AceOn — a UK battery specialist with 30+ years' experience — they deliver 5,000+ cycles and dependable power from −40°C to +70°C for OEM applications from power tools and robotics to medical devices, lighting and security.

The StamiNa+ soft pack range is a family of 12V sodium-ion battery packs built from NaCR32140 cylindrical cells in shrink-wrapped, space-efficient form factors. Available in capacities from 10Ah to 30Ah, each pack pairs a smart BMS with flying-lead terminations for straightforward drop-in integration.
Because they run on sodium-ion chemistry, these packs stay safe under abuse, deliver 5,000+ cycles, perform from −40°C to +70°C, and use no cobalt, nickel or scarce lithium. They form part of AceOn's wider custom battery pack manufacturing capability.
Whether you need a standard SKU or a fully bespoke design, AceOn's 30+ years of battery engineering sits behind every build.

Wide Temperature
Discharges from −40°C to +70°C — built for harsh climates.
5,000+ Cycle Life
≥70% capacity retained after 5,000 charge cycles.
Smart BMS Built In
Over-charge, over-discharge, over-current & short-circuit protection.
Cobalt & Lithium-Free
Safe, abundant, sustainable sodium-ion chemistry.
Three Capacities, Four Standard Packs
Every StamiNa+ soft pack runs at a nominal 12V with 200mm flying leads. Four standard packs span 10–30Ah — including two 10Ah footprints to suit different enclosures.

12V 10Ah

12V 10Ah

12V 20Ah

12V 30Ah
StamiNa+ Soft Pack Specifications
The complete standard sodium-ion soft pack range. Need a capacity, footprint or terminal that isn't listed? We build to order.
| Model | Config | Voltage | Capacity | Energy | Max Current | Dimensions (mm) | Weight |
|---|---|---|---|---|---|---|---|
| 1001459 | 4S1P | 12 V | 10 Ah | 120 Wh | 5 A | 145 × 135 × 34 | 1.1 kg |
| 1001460 | 4S1P | 12 V | 10 Ah | 120 Wh | 5 A | 145 × 68 × 68 | 1.1 kg |
| 1001461 | 4S2P | 12 V | 20 Ah | 240 Wh | 10 A | 145 × 135 × 68 | 2.2 kg |
| 1001462 | 4S3P | 12 V | 30 Ah | 360 Wh | 10 A | 145 × 202 × 68 | 3.3 kg |
All figures are typical and subject to change. Confirm final specification with AceOn before order.
Protected, Proven, Cold-Ready
Every StamiNa+ soft pack integrates a smart BMS and sodium-ion chemistry tested against real-world abuse.
Smart BMS Built In
Integrated protection against over-charge, over-discharge, over-current and short circuit, with passive cell balancing to keep every pack in tune.
Cold-Climate Ready
Discharges to −40°C and charges from −20°C — dependable through winter where lithium packs stall and lead-acid fades.
Abuse-Tested Safe
Sodium-ion cells show no fire or explosion in abuse testing, and use no cobalt, nickel or scarce lithium.
Charging profile by temperature
Charge rate (C) adjusts with temperature to protect the cells.
Recommended charger: AceOn Charger-094 · 12V 5A Sodium-Ion Charger
Built for Demanding Duties
StamiNa+ soft packs power OEM products where safety, cold tolerance and steady cycle life matter.
Power & Garden Tools
Cordless drills, screwdrivers, lawn mowers and industrial vacuums.
Robotics & Automation
Industrial AGVs, warehouse robots, cleaning and security robots.
Medical Devices
Oxygen concentrators, patient monitors, infusion pumps and mobility scooters.
Lighting
Solar street lights, outdoor lighting and diving lights.
Security & Surveillance
CCTV cameras and remote surveillance systems with all-weather reliability.
Bespoke OEM
Custom sodium-ion packs designed around your product on request.
Engineered to Your Application
The four standard packs are just the starting point. AceOn designs and specifies sodium-ion soft packs around your product — footprint, capacity, connector and protection all matched to fit. Explore our full battery pack manufacturing service.
- Custom capacity beyond 10–30Ah
- Bespoke form factors to fit your enclosure
- Flying-lead or connector terminations
- Cell configurations — 4S1P, 4S2P, 4S3P & more
- Integrated BMS & protection options
- Trial to volume supply
30+ Years of Battery Expertise
From cell selection and design to testing and supply, AceOn's UK team has the experience to specify the right sodium-ion pack for your product — and get it right first time.
Soft Pack Questions, Answered
What OEM buyers ask most about specifying a custom sodium-ion battery pack.
Can I get a custom size or configuration?
Yes. The four standard packs are a starting point — AceOn builds bespoke sodium-ion packs to your capacity, footprint, terminal and protection requirements. Send us your application and we'll engineer the right pack.
What terminal options are available?
Standard packs ship with 200mm flying leads (red positive, black negative) for easy integration. Custom connectors can be specified to match your harness or device on request.
How long do StamiNa+ soft packs last?
The sodium-ion cells are rated for 5,000+ cycles while retaining at least 70% capacity — far beyond typical lead-acid, and enough for many years of dependable OEM service.
What charger do these packs need?
Use a sodium-ion charger matched to the pack's 15.8V charge cut-off — we recommend the AceOn Charger-094 (12V 5A). Sodium-ion needs its own charge profile, so avoid generic lead-acid or lithium chargers.
Why choose sodium-ion over lithium?
Sodium-ion brings a much lower thermal-runaway risk, strong cold-weather performance to −40°C, long 5,000-cycle life and a cobalt-, nickel- and lithium-free supply chain — a compelling alternative for tools, robotics, medical and outdoor products.
Which applications suit StamiNa+ soft packs?
They're ideal for power and garden tools, robotics and AGVs, medical devices, solar and outdoor lighting, and security and surveillance — plus bespoke OEM builds. Anywhere safe, cold-tolerant, sustainable energy is an advantage.
Let's Build Your Sodium-Ion Pack
Tell us about your application and we'll specify the right StamiNa+ soft pack — standard or fully bespoke, backed by 30+ years of battery expertise.