$1,069.99 USD

The Aegis Battery 72V 40 Ah (2880 Watt Hours) Li-ion Battery is a state of the art rechargeable battery pack made with 18650 cells designed for 72V devices. It is perfect for RV, golf-carts, e-scooters, e-bikes, solar applications, robots, and other applications that require a higher-energy density battery.

The battery comes with integrated Anderson Power Pole PP45 and SB50 connectors making it a perfect drop in solution for your applications. The Aegis battery has a built in battery management system (BMS) that keeps the battery running at peak performance and protects the cells for thousands of cycles, including over-charge, over-discharge, over-current, and short-circuit protection.

For out of stock kits, we may be able to provide another compatible charger. Please contact us and we can check for you.

Adapters can also be purchased separately HERE

ABL-072040A Product Manual

For more info & usage notes for our lithium batteries, please click here.


Battery Chemistry NMC (Nickel Manganese Cobalt)
Battery Case PVC Wrapped
Cell Type/Assembly Method Cylindrical cells/welded
Voltage (V) 72V
Capacity (Ah) 40Ah
Energy Stored (Wh) 2880 Watt-Hours
Weight 36.8 lbs. (16.7 kg)
Dimensions (L x W x H) Imperial 16.7 in x 6.6 in x 5.5 in (+/-0.1in)
Dimension (L x W x H) 423 mm x 167 mm x 140 mm (+/-2mm)
Cycle Life 1000+ cycles
Discharge Connector SB50
Charge Connector PP45 Anderson
Normal Charged Voltage 84V
Normal Charge Current 10.0 Amps
Normal Battery Cutoff Voltage 56V
Nominal Continuous Discharge Current 20.0 Amps
Maximum Continuous Discharge Current 40.0 Amps
Maximum Peak Discharge Current  80.0 Amps (2 Seconds)
Charge Temperature 0°C to 45°C
Discharge Temperature -20°C to 60°C
Operating Humidity 60±20%R.H
Storage Humidity 60±20%R.H
Automatic Battery Protection Module/System Low Voltage Disconnect,
Over Voltage Disconnect,
Short Circuit Protection,
Reverse Polarity Protection,
Cell Balancing

Compatible AC-to-DC Charger Specifications:

Input Voltage: AC110V-240V, 50/60HZ
Output Voltage: 84VDC 
Current: 10A 
Connector: Anderson
Model Number: CRG-07210M

NMC Advantage

- Advanced NMC (Nickle Manganese Cobalt Oxide) Li-ion Chemistry superior to traditional Li-ion Batteries 
- All-Aspect Solution with best overall balance of features
- Highest Specific Energy (150-220Wh/kg)
- Ideally Suited for EV and High Energy Consumption Applications
- Excellent Lifespan (1000-2000 Cycles Average)

Intelligent Technology
- Battery Management System (BMS) Board as Standard
- Every Battery has bespoke board matching its performance parameters
- Comprehensively balances charging and discharging
- Internal balancing circuitry and charger circuitry inside BMS
- Comprehensive protections against over-charge, over-discharge, over-voltage, over-current, short circuits, reverse polarity, thermal protection
- Dramatically extends service life

Comprehensive Improvements
- Achieve full depth discharge of 100% Label Capacity
- “True Lithium Capacity” guarantees capacity of purchase is capacity delivered
- Reliable, repeatable full depth cycling without system life cycle degradation
- NMC Systems can be fully discharged safely without impact on system performance 
- Multiple times usable capacity of Lead Acid

Warranty: 2 years
Repair or Replace: 2 years
Returns/exchange: 30 days (Return ⟶ a 10% restocking fee plus shipping; exchange ⟶ charging shipping cost)
Cancellation: Within 24 Hours ⟶ No charge
Shipping: Standard within 2-3 business days