Sigma — 12 V 230/460 Ah LiFePO4 batteries (upcoming)
Country: Netherlands · Model: Sigma
A new series of 12.8 V LiFePO4 batteries at 230 and 460 Ah, plus the Duo 2 × 230 Ah assembly, with continuous discharge current of 200–350 A. The batteries are meant for motorhomes and sit in the under-seat compartment, and the maker's website flags the series as «coming soon».
- Chemistry
- LiFePO4
- Voltage
- 12.8 V
- Models
- Sigma 230 Ah, 460 Ah, Duo 2 × 230 Ah
- Continuous discharge current
- 200–350 A
Technical specifications
| Chemistry | LiFePO4 |
|---|---|
| Voltage | 12.8 V |
| Models | Sigma 230 Ah, 460 Ah, Duo 2 × 230 Ah |
| Continuous discharge current | 200–350 A |
| Cycle life | ≥5,000 cycles |
| Ingress protection | IP20 |
| Weight | 22–44 kg |
| Certifications | UN 38.3, UN ECE R10, FCC Class B |
| 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
The 12.8 V rating corresponds to four LFP cells in series, so Sigma connects to the 12 V house system of a motorhome in place of a lead-acid block. The 460 Ah model stores twice the energy of the 230 Ah one, and Duo is built from two 230 Ah blocks. Rated life is at least 5,000 cycles, which at one cycle a day means many years of service. The case is rated only IP20, protected against fingers but not water, so the mounting place must be dry and enclosed, like the under-seat compartment. Weight of 22–44 kg depends on the model, and floor fixing for the heavy versions should be planned in advance. UN 38.3 and UN ECE R10 cover transport and vehicle electromagnetic compatibility, while FCC Class B limits radio interference from the battery electronics.
How to choose
Size capacity by daily energy use, with 230 Ah for moderate loads and 460 Ah or Duo when a fridge, heater and inverter run without recharging. The 200–350 A current sets the ceiling for the inverter, so check its power against that figure. Until the series ships, a close substitute is the Epsilon traction line at 90–180 Ah with heating and Bluetooth, or the high-capacity Nomia at 100–340 Ah for large motorhomes.
Request a price and lead time
Sigma — 12 V 230/460 Ah LiFePO4 batteries (upcoming), Super B. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What is the voltage of the Sigma battery?
Nominal 12.8 V, made for the 12 V house system of a motorhome.
How does Sigma Duo differ from Sigma 460 Ah?
Duo is made of two 230 Ah blocks, while the 460 Ah model is listed as a separate version. The two-block build helps when the compartment cannot take one large case.
Can Sigma be installed in an engine bay or outdoors?
No, an IP20 rating gives no moisture protection. The battery goes in the dry under-seat compartment, as the maker intends.
How much current can a Sigma battery deliver?
Continuous discharge current is 200–350 A depending on the model.
What cycle life is stated for the Sigma series?
At least 5,000 cycles, according to the maker.
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Need a price, lead time or replacement?
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