InSight 48V

48V 30Ah
Deep Cycle Lithium Battery

InSight 48V

48V 30Ah
Deep Cycle Lithium Battery

Estimated 1 - 2 weeks shipping.

Built smarter, the InSight Series® 48V lithium iron phosphate battery delivers high-quality performance, scalable power, and unmatched precision. This lightweight and maintenance-free battery was engineered specifically to power golf cars, utility vehicles, LSVs and AGVs.


United States Of America White 230216 103954


Warranty White 230216 103954


Free Delivery White 230216 103955



Easy Installation

InSight batteries come in BCI group size GC2/GC8 allowing for easy installation without modifying trays or battery compartments.

Scalable System

InSight batteries offer freedom and flexibility by utilizing parallel connections, so you can scale your system to provide increased power and energy (up to 300Ah) as needed.

Super Smart BMS

The robust Battery Management System features a combined total of 48 charge and discharge MOFSETs that control current flow in and out of the battery, along with multilayer protective devices that prevent over/under voltage, current and temperature conditions. The multilayer protection allows InSight batteries to pass stringent UL safety standards.

Intelligent Cooling

InSight Series® uses a carefully engineered cooling management system to quickly remove heat from inside the battery during conditions of high discharge and recharge currents. This prevents overheating of critical components and extends the life of the battery.

Robust Communication

CANbus connections allow batteries to communicate real-time operating statistics like the voltage, current, state of charge and state of health, making InSight batteries more user friendly. Plus, all batteries feature a sleep and pulse recovery operation mode to conserve power.



Functional Specifications

Nominal Voltage 51.2V
Cell Chemistry LiFePO4
Cell Type Prismatic
Ampere-hour Capacity 30Ah
Watthour Capacity 1.536kWh
Specific Energy 128Wh/kg
Charge Efficiency 99%
Impedance (50% SOC, 1kHz) <150mΩ
Cycles @ 80% DOD >3500
Parallel Connections Yes (unlimited)
Series Connections No (max 48V system)

Mechanical Specifications

BCI Size GC2/GC8
Dimensions (LxWxH) 10.2 x 7.1 x 10.9 in (260 x 180 x 276mm)
Weight 34.4 lbs (15.6 kg)
Case Material ABS
Stud Terminal M8 X 1.25 - 20
Insert Terminal M8 X 1.25 - 20
Torque 79.7-88.5 in-lbs.6.6 - 7.4 ft-lbs.9-10 N-m
Handles Molded
Ingress Protection Marking IP67
Case Flame Rating UL94 V-0

Discharge Specifications

Continuous Discharge Current 100A
Peak Discharge Current 200A - 15 sec
Peak Discharge Current 400A - 30 msec
Short Circuit Protection 560A - 366 μsec
Protection Recover Automatic
Low Voltage Disconnect 40V - 5 sec (2.5vpc)
Low Voltage Reconnect Automatic
Self-Discharge perMonth @ 25°C in OFF mode 2.80%

Charge Specifications

Continuous Charge Current ≤ 60A
Disconnect Charge Current 65A - 5 sec
Recommended Charge Voltage 55.2V max
Float Voltage 54.4V
High Voltage Disconnect 59.2V (3.7vpc) (4 sec)
High Voltage Reconnect Automatic
Temperature Compensation None

Environmental Specifications

Charge Temperature 32°F to 131°F (0°C to 55°C)
Discharge Temperature -22°F to 149°F (-30°C to 65°C)
Operating Humidity <90% RH
Storage Temperature -4°F to 95°F (-20°C to 35°C)
Storage Humidity 25 to 85% RH


UL2580 (Cell) File Number: MH63797
UL2271 (Battery Pack) File Number: MH64262
CE (Battery Pack)
IEC 62133 (Battery Pack) File Number: 16IFpP22/101/145
UN38.3 (Battery Pack)

Shipping Classification

UN3480, Class 9


Discharge Voltage Chart 48 V graph
Discharge Voltage At Various Rates 48 V graph
Charge Voltage Soc Chart 48 V graph
Charge Voltage Charge Chart 48 V graph
Cycle Life Vs Depth Discharge Chart graph
Life Vs Lead Acid Chart graph


Justin Holt

This product has easy installation and works great

Claude Y.

Excellent. The product is very easy to install, including the SOC gauge and wake up button.

Richard Garner

what is the amperage on your 48 volt lithium batteries and is one 48 volt battery enough to run a golf cart

Christian K.

Works great. Will order a 3rd battery soon.

James F.

Batteries very easy to install, straightforward instructions. Range a bit less than predicted at 18-20 miles, but is a three row cart. Cart much quicker and lighter than before. All questions quickly answered by customer service.

Daniel Augustine

Relion Insight Series Batteries..... I started a Performance golf cart business in Colorado, and the performance all begins with the best battery. Thank goodness I found Relion and a great team to work with. I've sold over 50 of these beauties in custom builds and doing battery upgrades. The future is bright when you have a company like Relion with you. Craig Quentin and Brad Green have been amazing people to work with and I appreciate all the time and expertise they bring to the game. Thank You all at Relion for doing what you do.

A Plus Performance Carts
Daniel Augustine

Michael R.

Great product and service! Super flexibility and great support when 2 batteries weren't enough for my needs and needed to add 2 more batteries. Also - great follow up support from Brad, Jack and the entire Relion team!

J. B.

For my golf cart, they are working great love them.

Alan R.

This is a terrific product and easy to install. When I had questions the service team of Craig and Brad were fantastic and took the time I needed to have things run smoothly.

Dan Y.

These batteries are awesome.

Don S.

Outstanding. Easy install and plenty of power and easy charging and no maintenance.

Brent E.

Excellent customer service from RELiON. Easy golf cart installation. Cart runs quicker and extended range. Batteries charge quickly. No maintenance! Very happy with the purchase.

Edward K.

The batteries are really great and the installation was very easy. Their performance is great, I would heartily recommend them.

Thomas C.

Extremely pleased with the build quality, ease of installation, and reliability of this battery. Great product from a great company!

Chris O

They are fantastic. Run my upgraded golf cart with an alltrax 500amp controller and high torque motor with no problems.

Steve P

Using these batteries in a six-seater EZ Go passenger golf cart. Excellent batteries, but they have a few unique features that take a little getting used too. But overall, I like the batteries and a significant improvement over lead-acid batteries.

Rick R.

Purchased two 30AH Insight Batteries and Battery Monitor on-line/direct. I was promptly contacted about the cordset desired for the Lester Electrical Summit II charger included as a promotion and all items were meticulously packaged arrived in only 3 days by UPS ground. Tracking and Product Installation instructions were included in print and by e-mail. A few remaining questions were promptly answered by phone and e-mail.

I completed installation on a Club Car Precedent in about a day including some custom mounts. I opted for this approach rather than fitting "empty" filler batteries. These batteries are truely state of the art "smart batteries" with on-board management and SOC indication. Their initial performance has been outstanding. The weight reduction of 400 lbs to 88 lbs (with charger on board) makes the cart feel light and fast. There is no going back to high maintenance lead acid batteries which are really a pain to deal with.

I have yet to test the range of the unit, but I feel confident already that even though the initial cost is higher, these Lithium batteries are the best life cycle proposition for this application. Kudos to Relion.

Frequently Asked Questions

How do I determine the number of InSight batteries I need?
How many batteries you use, depends on your individual needs. Depending on the vehicle make, the terrain, the load in the vehicle, and driving style; 2, InSight batteries will provide 24-34 miles and 3 will provide 36-51 miles. For light usage, we suggest using 2 batteries whereas if you use your vehicle to play golf and get around your neighborhood, then you might want to try using 3 batteries. You can always add another battery to your vehicle if you decide you want even more range.
What is the available range with InSight batteries?
1 InSight 48V Battery = 12 - 17 miles per charge, 2 InSight 48V Batteries = 24 - 34 miles per charge, 3 InSight 48V Batteries = 36 - 51 miles per charge, 4 InSight 48V Batteries = 48 - 70 miles per charge, 5 InSight 48V Batteries = 60 - 85 miles per charge, 6 InSight 48V Batteries = 72 - 102 miles per charge
How do you install InSight batteries?
InSight batteries are super easy to install. Because they are a GC2 size battery, they’re designed to fit perfectly in your golf car. Simply remove your old batteries, drop-in your new InSight batteries, connect them in parallel, connect the CAN cables that come with your battery then turn your batteries on via the wake-up button. There’s no tray modifications and no extra components needed. We do recommend you use our spacer batteries in the empty battery slots so you can use the existing battery hold down that come with your vehicle.
Can InSight batteries be connected in parallel or series?
RELiON’s InSight batteries were designed exclusively to run in parallel. For starters, each InSight battery is 48 volts. This simplifies installation and makes each unit more reliable than the normal method of connecting several 12 - or 24 - volt batteries in series. At 48 volts each, you need fewer batteries for your golf cart. But that doesn’t mean you can’t use more. Up to 10 Insight batteries can be connected in parallel, giving you up to 300 amp-hours. Because they are in parallel, if any one battery goes offline, you will not notice any difference in performance, only duration. A parallel connection extends the reliability of each individual Insight battery to the entire array, giving you more power, more capacity, and less to worry about when driving your golf cart.
How strictly do I need to follow the recharging limits?
The short answer is “not very.” Our specs call for the batteries to be recharged to 14 to 14.6 volts for bulk charging and to float the battery at 13.8 volts. If you recharge the battery below that range, you’ll have less than 100% charge in the battery - it will be at a partial state of charge. All that means is you’ll need to recharge it again sooner than you otherwise would. But you’re not harming the battery in any way by coming in lower than our recommended range - you’re only cutting into the capacity you’ll have from that charge. If you go over the 14.6-volt limit, our battery monitoring system - or BMS - will sense the over-voltage and disconnect from the battery. That’s it! The only thing that will happen is that the BMS will do what it is designed to do and protect your battery.
What are regen currents and why are they important?
Regenerative currents are currents that are provided to the battery like a charge current during breaking and/or for speed control. InSight batteries are unlike other lithium batteries in that they have the ability to manage these regen currents when they occur. InSight batteries are built with intuitive software to manage this, avoiding disconnects that occur in these scenarios.
Why do I have to use battery spacers in empty slots?
We recommend using our Battery Spacers to fill the empty battery spots so you can use the existing battery hold-down that comes in your vehicle. If you do not use our Battery Spacers, you must take precautions to ensure your InSight batteries are securely held down. Our spacer batteries can be purchased on our website.
How does regenerative braking work for golf carts?
Let’s first start with some basics about your golf cart motor. Electric motors are reversible machines, they can function as motors or as generators. In fact, while your motor is operating, it is the generator effect that produces the Counter Electromotive Force (CEMF), which reduces the current in the motor. Without this effect, the currents in the motor would be too large to manage. An additional advantage of the CEMF is that it can be used to send energy back to the source. The typical situation is one of an electric vehicle rolling on a sharp downhill slope and forcing the motor to turn fast enough to engage the regenerative braking, which sends energy to the batteries. If your battery’s BMS isn’t built to handle regen currents, when this occurs your battery will simply disconnect resulting in a sudden stop, which can be concerning. The good news is our InSight batteries feature intuitive software that tells the BMS to manage these regen currents when they occur. This is quite unique in the lithium battery world today, making InSight truly different from other lithium batteries.

The InSight 48V Is Great For Powering

Golf Green Small

Golf Cars

Ev Green Small


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Renewable Energy

How To Install InSight Series 48V Golf Cart Batteries

RELiON's InSight 48V lithium golf cart batteries are easy to install and use.

Why You Should Choose The InSight 48V Battery

Brad Winkler from Battery Boys explains why the advantages of LiFeP04 batteries have more people choosing lithium for their electric golf cars.

We're Invested In Our Lithium Iron Phosphate Batteries

Lithium Certifications Recycling 1000X300