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Sofar BTS E-DS5

Name: Sofar BTS E-DS5
Brand: Sofar

4.992–19.968 kWh usable · best for daily cycling, with a warranty that lasts the full term

7.4Good#16 of 28 battery series we rank · EnergyUpgrade Score out of 10

Why it scores 7.4.

Each part comes from the datasheet with a published rule; anything not stated scores zero.

Warranty that lasts
10.0 · 30%
Battery warranties end at 10 years or when a set amount of energy has passed through, whichever comes first. This is how many years the warranty covers for a typical home, which cycles its battery about 300 times a year.
Rule: Years of performance warranty at 300 full cycles a year, from the manufacturer's Australian warranty document: 6 years scores 0, the full 10 years or more scores 10.
Weather sealing
9.0 · 25%
Outdoor-rated batteries can go on any wall, including in the weather.
Rule: IP66 or better scores 10, IP65 9, IP55 6, IP54 4, lower 0.
Room to grow
3.3 · 25%
Start with what you need and add modules later, for an EV or electric heating.
Rule: Largest approved configuration, usable kWh: 10 scores 0, 40 or more scores 10.
Heat tolerance
6.7 · 20%
Batteries in garages and on west walls get hot. Higher operating limits mean less throttling.
Rule: Highest operating temperature: 40°C scores 0, 55°C or more scores 10.

4 approved models · Australian datasheet

Usable capacity: 4.992–19.968 kWh usable
Per module: 14.976 kWh
Performance warranty: 10 years, 70% capacity retained
Warranted throughput: 18.25 MWh per 5 kWh module
Warranty at 300 cycles a year: 10.0 years
Discharge power (as printed): 10 kW
Chemistry: LFP
IP rating: IP65
Highest operating temperature: 50°C
Expansion: 1 x BTS 5K-BDU battery distribution unit with 1-4 x BTS 5K battery modules (max. current 30 A); extendable by mixing new and existing batteries
Warranty (as printed): 10 years
Installation: Floor Stand; modular design and stacked installation, plug and play; natural cooling; max. operating altitude 4000 m
Weight: 110 kg