EQ-4D Battery Eternity Technologies 12V 159Ah Carbon Nano Gel Deep-Cycle Dual Terminal

EQ-4D Battery Eternity Technologies 12V 159Ah Carbon Nano Gel Deep-Cycle Dual Terminal

The EQ-4D Battery from Eternity Technologies is a high-capacity 12-volt deep-cycle battery designed for demanding motive power, renewable energy, and standby applications. Using Eternity’s advanced QUASAR™ Carbon Nano Gel Bloc
VRLA nano-hybrid technology, this Group 4D commercial battery delivers excellent cycle life, high energy efficiency, and reliable performance in tough real-world conditions.

With a 159Ah capacity at the C20 rate and a fully sealed, maintenance-free design, the EQ-4D is an ideal upgrade or replacement for applications that require long runtimes, frequent cycling, and minimal service. Its robust
construction and gel electrolyte make it well suited for vibration-prone or mobile environments where traditional flooded batteries struggle.

• Voltage: 12 Volt
• Size (L x W x H): 20.2″ x 8.78″ x 8.54″
• Capacity: 159Ah (C20)
• Dual Terminal: automotive post and screw/bolt (stud) connection
• Approx. Weight: 119 LB  (shipping weight varies)

EQ-4D Battery Eternity Technologies 12V 159Ah — 12-volt commercial deep-cycle QUASAR Carbon Nano VRLA technology.

Terminal options available: M8 insert, automotive A-pole, and dual auto + stud (contact us for availability).

Key Features & Benefits

• 12V / 159Ah (C20) deep-cycle capacity for long runtimes and reliable backup power.
• QUASAR™ Carbon Nano Gel Bloc VRLA technology for improved charge acceptance, lower internal resistance, and enhanced efficiency.
• Maintenance-free, sealed design – no topping up or electrolyte checks required.
• Long service life with excellent cycle performance when used with the recommended charging profile.
• Excellent performance in partial-state-of-charge applications and opportunity-charging environments.
• Stable gel electrolyte helps resist stratification and provides better tolerance to vibration and shock.
• Group 4D footprint for straightforward replacement where a 4D case size is specified.
• Secure threaded terminals for low-resistance cable connections and flexible installation.

Typical Applications

The EQ-4D is engineered for a wide range of motive, leisure, and reserve-power uses, including:

• Electric vehicles and floor cleaning machines
• Wheelchairs and mobility equipment
• Access platforms and other electric working platforms
• Solar and renewable energy storage / home inverter systems
• Caravans, motorhomes, RVs, and marine power
• UPS systems and backup power
• Traffic control systems and telecom / emergency lighting banks

Technical Specifications (Key Data)

• Model: Eternity Technologies EQ-4D QUASAR Carbon Nano Gel Bloc
• Voltage: 12V nominal
• Capacity: 159Ah @ C20 (approx. ratings available at C5, C10, and C100)
• Chemistry / Type: Sealed VRLA, Carbon Nano Gel (nano-hybrid design)
• Case Size: BCI Group 4D
• Dimensions (L x W x H): 20.2″ x 8.78″ x 8.54″
• Approx. Weight: 119 LB  (shipping weight varies)
• Terminals: Dual terminal – automotive post plus stud; M8 and A-pole options available
• Design Life (at 20–25°C): long design life under recommended operating conditions
• Compliance: Developed to meet relevant EN and IEC standards for motive and reserve-power VRLA batteries

Charging & Maintenance Guidelines

For maximum life and performance, the EQ-4D should be charged using a quality charger with a profile compatible
with sealed Gel/VRLA batteries. Follow Eternity Technologies’ recommended bulk, absorption, and float voltages
as outlined in the official QUASAR Gel Bloc installation manual. Avoid chronic overcharging or undercharging,
especially at high ambient temperatures, and ensure adequate ventilation around the battery bank to dissipate heat.

If the battery is stored for extended periods, apply a periodic refresh or maintenance charge according to the
manufacturer’s guidelines to help prevent sulfation and loss of capacity.

Why Choose the EQ-4D?

The Eternity Technologies EQ-4D is a premium Group 4D solution when you need a rugged, maintenance-free
deep-cycle battery that can handle frequent cycling, partial-state-of-charge operation, and demanding
environmental conditions. Its Carbon Nano Gel design offers improved energy efficiency, faster recharge
capabilities, and long service life compared with many conventional flooded or standard AGM batteries.

Whether you are building a new battery bank or upgrading existing equipment, the EQ-4D delivers the reliability
and performance you need for motive power, solar energy storage, or critical backup systems. Confirm dimensions,
terminal configuration, and polarity against your existing battery to ensure a proper fit, then order your EQ-4D
today with confidence.