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PowerHouse  |  SKU: PH3640

PowerHouse Lithium 36V 40Ah Deep Cycle Battery

$974.99

Choosing the ideal 36V 40Ah deep cycle battery comes down to evaluating your individual needs, understanding battery specifications, and prioritizing quality over low-cost alternatives. Whether you’re looking for clean energy storage or reliable on-the-go power, the professionals at PowerHouse Lithium are here to help you make a choice that serves you well for years to come.

Don’t wait to see how PowerHouse Lithium’s wide range of products can improve your boating experience. Our 36V 40Ah deep cycle lithium trolling motor batteries give you the power to fish all day long. Engineered with Lithium Iron Phosphate (LiFePo4) technology this battery has twice the power, half the weight, and lasts 4 times longer than a sealed lead acid battery.

If you need more output, 40 Amp hours (Ah) of capacity is optimal for power hungry 36V trolling motors. Our industry leading Bluetooth enabled Smart Battery Technology, will constantly monitor your 36V 40Ah lithium battery and make changes to give you optimal performance all day. Keep up with this from the convenience of your phone.

Requires Group 31 tray.

Amp Draw Specs

12V versus 16V efficiency.

Now run your equipment 20% longer and on a separate clean power system, and receive better clarity and signal returns with 16V systems. Switch with no effects on warranty issues. as all units listed operate at above 16 volts. When setting up a system add the the total number of amps needed and divide by the AH of the battery rating. Remember to add  20% more AH rating then needed for a 10 hour day or longer so that same battery will be big enough for load after 4 years of service. 

* Note less amp draw from units on 16V mean less heat for units to absorb making units run cooler.

 

 

All Battery Models & Trays

VEX
12V 6Ah
12V 8Ah
12V 12Ah

Shuttle
12V 30Ah
16V 18Ah

GROUP 20
12V 60Ah
16V 48Ah

GROUP 24
16V 60Ah
16V 80Ah


GROUP 31
12V 100Ah
12V 105Ah
12V 110Ah
16V 100Ah
24V 60Ah

36V 40Ah
36V 60Ah


GROUP 5D
16V 140Ah

Bluetooth

Monitor your battery from the convenience of your phone.

40 Amp Hours

All the capacity you need for power-hungry trolling motors.

Specifications
  • Warranty
    15 Years
  • Battery Management System
    Yes
  • Bluetooth
    Yes
  • Dimensions in Inches (LxWxH)
    13 x 6.77 x 8.46
  • Weight
    31.9 lb
  • Case Size
    31
  • Terminal Bolt Size
    M8
  • Cell Type
    Cylindrical
  • Watt Hours
    1,536
  • Reserve Capacity
    40Ah
  • Voltage Range
    30V to 43.8V
  • Nominal Voltage
    38.4V
  • Maximum Charge Current
    40A
  • Pack Charge Cutoff
    43.8V
  • Pack Discharge Cutoff
    30V
  • Charge Temperature Range
    23°F～140°F
  • Continuous Discharge
    60A
  • Peak Discharge
    120A
  • Discharge Temperature Range
    -4°F～149°F

Payment & Security

Payment methods

  • American Express
  • Discover
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Selected Add-Ons

Everything you need to complete your order.

These items were picked by our staff to pair with our 36V 40Ah Deep Cycle Battery.

View All

Which battery is right for you?

PowerHouse Lithium 16V 100AH Deep-Cycle Battery (5 to 6 Devices)
View details
PowerHouse Lithium 24V 60Ah Deep Cycle Battery
View details
PowerHouse Lithium 36V 40Ah Deep Cycle Battery
View details
PowerHouse Lithium 36V 60Ah Deep Cycle Battery
View details
Price
Price
$899.99
$974.99
$974.99
$1,299.99
BMS
BMS
Yes
Yes
Yes
Yes
Voltage Range
Voltage Range
15.3V to 16.8V
20V to 29.2V
30V to 43.8V
30V to 43.8V
Bluetooth
Bluetooth
Yes
Yes
Yes
Yes
Watt Hours
Watt Hours
1,600
1,536
1,536
2,160
Warranty
Warranty
15 Years
15 Years
15 Years
15 Years
Case Size
Case Size
31
31
31
31

Frequently Asked Questions

What size wiring is needed to carry loads?

We suggest 10AWG to run form batteries to Perko switch and to units. Our battery install kit comes with four 6 AWG battery cables to go to Perko.

If you choose to run main power to a separate fuse box then you only need 14AWG as 16V system carries the load much better than 12v and will not drop voltage, especially since you are running each device on a separate circuit to the fuse box.

The fuse box eliminates the factory fuse holders that are impossible to get to if a problem occurs on the water. But system will accepted other wiring harness from other suppliers.

Can a deep cycle battery be used as a cranking battery?

No. This battery is designed to take the load off your cranking battery by running a separate clean power system to the devices.

Deep cycle batteries and cranking batteries are designed for different purposes. So while it's technically possible to use a deep cycle battery as a cranking battery, it may not provide the quick burst of energy needed to start an engine efficiently. Cranking batteries are better suited for this purpose due to their design.

  • BMS Protection

    Our batteries feature a state-of-the-art battery management system with cell balancing, low voltage cutoff, high voltage cutoff, short circuit protection and high temperature protection for increased performance and longer life.

  • Bluetooth Technology

    Our free Bluetooth app provides instant access to the battery state of charge (SOC), voltage, cycles and a complete log of any potential issues. All from the convenience of your phone!

  • All Major Brands

    Our batteries are fully compatible with Hummingbird, Lowrance and Garmin.

Fished a 3-day state tournament this past week and they worked flawlessly! If only my fishing skills were as good as PowerHouse, I'd be making some money!

Jeff Heinze

Running my electronics on a 16V system and it's been flawless. Not to mention the improved function of all my units.

Ken Jenkins

I will never run any other system on my boat. The 16V battery provides more clarity and voltage throughout the day. Additionally, the redundancy they create with the system is crucial when my career is on the line.

Kyle Patrick

Bassmaster Elite Series Pro

Awesome batteries. Awesome customer service and sales.

Ryan Johnson
PowerHouse

PowerHouse Lithium 36V 40Ah Deep Cycle Battery

$974.99

Choosing the ideal 36V 40Ah deep cycle battery comes down to evaluating your individual needs, understanding battery specifications, and prioritizing quality over low-cost alternatives. Whether you’re looking for clean energy storage or reliable on-the-go power, the professionals at PowerHouse Lithium are here to help you make a choice that serves you well for years to come.

Don’t wait to see how PowerHouse Lithium’s wide range of products can improve your boating experience. Our 36V 40Ah deep cycle lithium trolling motor batteries give you the power to fish all day long. Engineered with Lithium Iron Phosphate (LiFePo4) technology this battery has twice the power, half the weight, and lasts 4 times longer than a sealed lead acid battery.

If you need more output, 40 Amp hours (Ah) of capacity is optimal for power hungry 36V trolling motors. Our industry leading Bluetooth enabled Smart Battery Technology, will constantly monitor your 36V 40Ah lithium battery and make changes to give you optimal performance all day. Keep up with this from the convenience of your phone.

Requires Group 31 tray.

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