H4-12V-400 
12V
12V H Series Passenger Vehicle Batteries
H4-12V-400 Sodium-ion Start-Stop Battery
An upgraded H4-size sodium-ion start-stop platform with 30 Ah capacity and 660 A CCA for compact AGM/EFB replacement programs.
Sodium-ion start-stop batteries for AGM/EFB replacement
Start-stop batteries for frequent cranking and PSOC duty.
Choose H-series sodium-ion start-stop platforms by H4-H9 case size, CCA target, AGM/EFB replacement need and cold-weather vehicle application.
H5-12V-500 
12V Fast CCA
12V Fast CCA H Series Passenger Vehicle Batteries
H5-12V-500 Sodium-ion Start-Stop Battery
The upgraded H5 platform provides 40 Ah capacity and 850 A CCA for passenger cars and light fleets requiring stronger pulse current margin.
H6-12V-600 
12V
12V H Series Passenger Vehicle Batteries
H6-12V-600 Sodium-ion Start-Stop Battery
H6-12V-600 now provides 50 Ah capacity and 1,000 A CCA for vehicles that need stronger starting torque under low temperature and accessory loads.
H7-12V-750 
12V
12V H Series Passenger Vehicle Batteries
H7-12V-750 Sodium-ion Start-Stop Battery
A higher-capacity 12 V sodium-ion battery for platforms that need a 1,200 A CCA class product and stable performance across harsher routes.
H8-12V-840 
12V
12V H Series Passenger Vehicle Batteries
H8-12V-840 Sodium-ion Start-Stop Battery
H8 delivers 70 Ah capacity with a final 1,400 A CCA rating for vehicles facing low temperature or high accessory demand.
H9-12V-900 
12V
12V H Series Passenger Vehicle Batteries
H9-12V-900 Sodium-ion Start-Stop Battery
The H9 pack is the largest current H-series start-stop platform at 80 Ah, with a final 1,600 A CCA rating and a listed weight of 11.40 +/- 0.5 kg.
Start-stop battery advantage
Why sodium-ion fits start-stop duty.
Start-stop batteries face short high-current pulses, winter cranking pressure and repeated urban driving cycles. NaVolt sodium-ion battery (SIB) platforms are designed around cold starts, cycle endurance, validation support and PACK integration.
01
Cold cranking without preheating
Sodium-ion chemistry and low-temperature electrolyte design support reliable starting in severe winter routes, with validated start-stop materials targeting operation down to -45C.
-45C
Cold routes
02
Built for daily start-stop duty
More than 3,000 cycle life and over 100,000 simulated start-stop cycles help fleets reduce replacement frequency and lifetime service cost.
>3,000 cycles
Daily duty
03
Stable chemistry for abuse tolerance
The sodium-ion system is designed for abuse-tolerance validation, BMS monitoring and 0V storage support in validated configurations.
Ask for reports
Validation margin
04
Pack engineering from cell to system
NaVolt develops sodium-ion and lithium PACKs with model simulation, BMS matching, thermal validation and mechanical integration for export customers.
PACK + BMS
OEM ready
Product certifications.
NaVolt battery platforms are supported by certification and transport documentation for global buyer evaluation.
Need help matching an H-series start-stop platform?
Send the vehicle class, CCA demand, case size and target market. NaVolt can review the suitable sodium-ion battery (SIB) start-stop option for your RFQ.