perma batteries Série-PB
The perma batteries Série-PB is a battery pack with a nominal voltage of 1.2V, a nominal capacity of 100 to 1,200 Ah and nickel-iron cells.
Last updated: 28 October 2026
Battery and charging
- Energy (kilowatt-hours)
- 55 kWh
- Voltage
- 1.2V
- Chemistry
- nickel-iron
- Rated charge cycles
- Sources disagree
3,000+
“Cycle life (to 70 % capacity) 3,000+ at 80 % DoD · 7,000+ at 40 % · 12,000+ at 20 %”
Source: perma-batteries-usa.com/product/edison-battery
3000
“Cyclabilité à 80% DoD (20°, EOL 70%) > 3000”
Source: perma-batteries.com/wp-content/uploads/2020/07/FICHE-TECHNIQUE-NIFE.pdf
2000
“Cyclabilité à 80% DoD (20°, EOL 70%) > 2000”
Source: perma-batteries.com/wp-content/uploads/2022/01/FICHE-TECHNIQUE-NIFE.pdf
- Energy returned
- 70 to 80 %
- Nominal capacity
- 100 to 1,200 Ah
- Peak discharge
- Sources disagree
C/4
“Courant de décharge crête (15 min) C/4”
Source: perma-batteries.com/wp-content/uploads/2020/07/FICHE-TECHNIQUE-NIFE.pdf
C/3
“Courant de décharge crête (15 min) C/3”
Source: perma-batteries.com/wp-content/uploads/2022/01/FICHE-TECHNIQUE-NIFE.pdf
- Maximum discharge current, as the maker labels it
- 1C
- Continuous discharge current
- C/10
- Maximum charge current, as the maker labels it
- Sources disagree
1C
“Charge constant current · C/5 optimal (C/15 min, 1C max) · bulk 1.60 to 1.70 V/cell”
Source: perma-batteries-usa.com/product/edison-battery
C/4
“Courant de charge maximum C/4 (électrolyte < 40°)”
Source: perma-batteries.com/wp-content/uploads/2020/07/FICHE-TECHNIQUE-NIFE.pdf
C/2
“Courant de charge maximum C/2 (électrolyte < 40°)”
Source: perma-batteries.com/wp-content/uploads/2022/01/FICHE-TECHNIQUE-NIFE.pdf
- Charging voltage
- Sources disagree
1.60 to 1.70 V/cell
“Charge constant current · C/5 optimal (C/15 min, 1C max) · bulk 1.60 to 1.70 V/cell”
Source: perma-batteries-usa.com/product/edison-battery
1.60V - 1.70V
“Voltage bulk/absorption ~ 1.60V - 1.70V”
Source: perma-batteries.com/wp-content/uploads/2022/01/FICHE-TECHNIQUE-NIFE.pdf
- Depth of discharge it is rated at
- Sources disagree
30 to 60 %
“Depth of discharge 30 to 60 % recommended · 100 % tolerated · 0.9 V/cell at 0 % SOC”
Source: perma-batteries-usa.com/product/edison-battery
30%- 60%
“Profondeur décharge recommandé (DoD) 30%- 60%”
Source: perma-batteries.com/wp-content/uploads/2020/07/FICHE-TECHNIQUE-NIFE.pdf
30%
“Compensation de température -3mV/C° DoD recommandé 30% DoD toléré jusqu'à 100%”
Source: perma-batteries.com/wp-content/uploads/2022/01/FICHE-TECHNIQUE-NIFE.pdf
“Bank options 12 V (10 cells) · 24 V (20 cells) · 48 V (40 cells) · up to 55 kWh”
Source: perma-batteries-usa.com/product/edison-battery
“Voltage nominal (EMF) ~ 1.2V”
Source: perma-batteries.com/wp-content/uploads/2022/01/FICHE-TECHNIQUE-NIFE.pdf
“flooded alkaline nickel-iron (NiOOH / FeOH) · no BMS”
Source: perma-batteries-usa.com/product/edison-battery
“Round-trip efficiency 70 to 80 % (Wh)”
Source: perma-batteries-usa.com/product/edison-battery
“Cell capacity 100 to 1,200 Ah (C5)”
Source: perma-batteries-usa.com/product/edison-battery
“Discharge C/10 optimal · 1C max with stable voltage (European manufacturing)”
Source: perma-batteries-usa.com/product/edison-battery
“Courant de décharge optimal C/10”
Source: perma-batteries.com/wp-content/uploads/2022/01/FICHE-TECHNIQUE-NIFE.pdf
Battery care and safety
- Battery service life claim
- 25+ years
- Operating temperature range
- -20 to 40 °C
- Temperatures it may be charged in
- -15 à + 40°
- Temperatures it may be run in
- -15 à + 40°
- Temperatures it may be stored in
- Sources disagree
-20 à + 30°
“Température de stockage (C°) -20 à + 30°”
Source: perma-batteries.com/wp-content/uploads/2020/07/FICHE-TECHNIQUE-NIFE.pdf
-30 à + 45°
“Température de stockage (C°) -30 à + 45°”
Source: perma-batteries.com/wp-content/uploads/2022/01/FICHE-TECHNIQUE-NIFE.pdf
“Calendar life 25+ years · rebuildable by electrolyte replacement”
Source: perma-batteries-usa.com/product/edison-battery
“Operating temperature -4 to 104 °F (-20 to 40 °C) · no impact on lifespan”
Source: perma-batteries-usa.com/product/edison-battery
“Température de charge (C°) -15 à + 40°”
Source: perma-batteries.com/wp-content/uploads/2022/01/FICHE-TECHNIQUE-NIFE.pdf
“Température de décharge (C°) -15 à + 40°”
Source: perma-batteries.com/wp-content/uploads/2022/01/FICHE-TECHNIQUE-NIFE.pdf
Size and fit
- Torque for the battery terminal nuts
- 32 N·m
“Terminal torque every 2 years M20 terminals, 24 lb·ft (32 N·m)”
Source: perma-batteries-usa.com/product/edison-battery
Certification claims
- Standard certified to
- Sources disagree
ISO 9001:2015
“Compatible inverters Victron · Studer · Deye · 38 to 66 VDC window on 48 V banks Manufacturing Europe · ISO 9001:2015”
Source: perma-batteries-usa.com/product/edison-battery
IEC 62133-2017
“Durée de vie de plusieurs décennies Certifiées IEC 62133-2017 Robustesse incomparable”
Source: perma-batteries.com/wp-content/uploads/2020/07/FICHE-TECHNIQUE-NIFE.pdf
Sources
- Archived document
Source: perma-batteries-usa.com/product/edison-battery
Retrieved October 28, 2026
- Archived document
Source: perma-batteries.com/wp-content/uploads/2020/07/FICHE-TECHNIQUE-NIFE.pdf
Retrieved October 28, 2026
- Archived document
Source: perma-batteries.com/wp-content/uploads/2022/01/FICHE-TECHNIQUE-NIFE.pdf
Retrieved October 28, 2026