Mason — 12 V 20/25 Ah LiFePO4 starter batteries with built-in BMS
Country: Netherlands · Model: Mason
A 12 V LiFePO4 starter battery rated 20 or 25 Ah (256 and 320 Wh) with 260 A continuous discharge current and a built-in BMS. It takes the place of a lead-acid starter battery in motorcycles, cars, race vehicles and fast motorboats.
- Chemistry
- LiFePO4, built-in BMS with balancing
- Voltage
- 12 V
- Capacity
- 20 and 25 Ah (256 and 320 Wh)
- Continuous discharge current
- 260 A
Technical specifications
| Chemistry | LiFePO4, built-in BMS with balancing |
|---|---|
| Voltage | 12 V |
| Capacity | 20 and 25 Ah (256 and 320 Wh) |
| Continuous discharge current | 260 A |
| Cycle life | >1,000 cycles at 10C discharge |
| Ingress protection | IP66 |
| Dimensions / weight | 255 × 101 × 171 mm; 4.6–5.2 kg |
| Certifications | CE, UKCA, UN 38.3, UN ECE R10, UL 1642 |
| Customs codes (for reference) | |
| HS code | 8507.60 |
| UKTZED code (Ukraine) | 8507600000 |
| CN code (EU) | 85076000 |
Specifications are taken from the manufacturer’s technical documentation. Updated . Customs codes are for reference only; the final code is determined at customs declaration for the specific model.
Description
Inside are lithium iron phosphate cells and a balancing BMS board that levels the cell charge on every cycle. Both capacities share one 255 × 101 × 171 mm case and differ only in weight, 4.6–5.2 kg, so the battery tray needs no rework. The case is rated IP66, meaning dust-tight and protected against powerful water jets, which matters in an open motorcycle bay or on a boat. Rated life is over 1,000 cycles at a 10C discharge rate, a figure that reflects starting duty with short high-current pulses. CE and UKCA cover market access in the EU and Great Britain, UN 38.3 is required to ship lithium batteries, and UN ECE R10 deals with electromagnetic compatibility in vehicles. The cells are also certified to UL 1642.
How to choose
Pick 20 or 25 Ah by the reserve you want for repeated cranking and for running electronics with the engine off, the case size stays the same. If the lowest weight and a standard rally case matter more, look at the Andrena series with 2.5–25 Ah, 40–385 A and IP69 protection, though it has no built-in BMS. A starter battery is the wrong choice for house loads in a motorhome or on a boat, that job belongs to the Epsilon traction batteries rated 90–180 Ah.
Request a price and lead time
Mason — 12 V 20/25 Ah LiFePO4 starter batteries with built-in BMS, Super B. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
Does the Mason battery have a built-in BMS?
Yes, Mason carries a BMS with cell balancing. The sister starter series Andrena has no BMS, and that is the main difference between the two.
What is the continuous discharge current of the 25 Ah Mason?
The maker lists 260 A continuous, one figure for both the 20 Ah and 25 Ah versions.
Can a Mason go into an open motorcycle bay or onto a boat?
Yes, the case is rated IP66 against dust and powerful water jets. The terminals and cables are still best protected separately.
What are the dimensions and weight of the Mason battery?
The 255 × 101 × 171 mm case is shared by both capacities, and weight is 4.6–5.2 kg.
How many cycles does a Mason battery last?
The maker states more than 1,000 cycles at a 10C discharge rate.
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REQUEST
Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.