36 Volt 27Ah Deep Cycle Lithium Battery


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We ship internationally & to most countries
Free shipping in the U.S.
Comes with an outstanding 11-year warranty
  • 70% lighter than lead acid
  • Perfect for golf carts, solar energy systems, & many other applications
  • 2-4x the service life (3000-5000 cycles; more cost efficient than lead acid in the long run)
  • Over voltage and low voltage protection built in, and short-circuit protection too
  • Our Bluetooth app gives you access to real-time battery status
  • Cold weather protection is built into this battery
  • This battery is plug & play – super simple drop in replacement
  • 99% DOD (Depth Of Discharge)
  • Advanced Battery Management Systems with power terminal cut-off & recovery
  • Industry leading  11 year warranty to help you sleep at night
  • Connect as many batteries as you need in parallel
  • Hilly terrain? You’ll want 2-3 batteries in parallel.
  • Compatible with most 36V golf carts.
  • NOT compatible with 48V golf carts. (Use 48V batteries instead.)
  • Compatible with 72V golf carts.
  • We ran our tests on an untouched stock golf cart


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Product Description

Ionic 36V 27Ah Lithium Deep Cycle Battery: Unrivaled Value, Quality & Performance

lithium golf cart batteriesOur 36V 27Ah lithium battery is not only ultralight, which lends to more speed and acceleration – it’s built to last. And that’s a massive advantage.

The boost in speed you get because lithium is lighter is great, but another key characteristic of these batteries is their lifespan. They last 4-6x longer than lead acid, which is generally around 10 years, but sometimes much longer.

These batteries also require no maintenence whatsoever. And let’s not forget the peace of mind our Ionic Bluetooth App brings you.

Tracking your battery life has never been so easy, because you have all the real-time information you need in your smartphone!

Wondering how much juice you have left? Just pull out the phone and there it is on your screen – simple as that.

The Ionic 36V 27Ah Lithium Deep Cycle Battery is, more or less, the most advanced deep cycle battery available on the market. That means top quality, superior performance, and a LOT of savings in the long run. And just in case, we like to provide you with our industry-leading 11-year battery warranty. This helps you sleep better at night, knowing you’re in good hands. (Compare our warranty with other brands’ warranties, you’ll see what we mean.)

lithium golf cart batteries benefits

36V 27Ah Battery Uses

Your best bet for a good golf cart battery is lithium, not just for long-term savings, but because of how light they are. Lead acid batteries slow golf carts down with their bulk. Using lithium cuts that weight, translating into a leaner golf cart with more speed.

Now, as you may know, older golf carts have a 36V motor and controller, newer golf carts have a 48V motor and controller.

Warning – 48V batteries will damage a 36V golf cart system. Our 48v golf cart batteries are great, but not for that system. Please use our 36V 27Ah batteries for your 36V system, and our 48V batteries if you have a 48V system.

But what if you have a 72V golf cart system? Well, the 36V can be used for 72V golf cart systems as well. (Two series with more in parallel.) Some of the limousine golf carts have this setup.

Other important things to note: 

  • You can use solar chargers.
  • Max charge current is 30 amps and the max discharge is 150 amp/500 amps (3s).
  • The max charge voltage for the 36V 27Ah battery is 58.4V, and a 42V discharge cut-off voltage.
  • You can use most standard lead-acid chargers (chargers without a “Desulfate” mode). You just need to make sure the levels don’t exceed the battery charge requirements.
  • You can also charge it with a standard lead-acid charger (one that achieves 57.6-58.4 volts).
  • Chargers with a voltage of less than 54.4 volts will charge the battery, but only to 50% capacity. And possibly less.

Further questions? Contact our experts here.

Has Bluetooth connection

Has Bluetooth connection
Can be charged in series

Can NOT to be connected in series.
Can be charged in parallel

Can be charged in parallel
Free Shipping

Free Shipping
Lithiumhub 30 Day Return Policy

30 Day Return Policy
11 Year Battery Warranty

11 Year Battery Warranty
Model IC-36V27-HP
Voltage 36V
Capacity 27Ah, 1,382Wh
Chemistry LiFePo4
Dimensions 10.2″ (L) x 7.1″ (W) x 11.7″ (H)
Life Cycles 3,000 @ 80% DOD
BMS Yes (Internal)
Max Charge Voltage 43.8V ±0.1V
Discharge Cut-Off Voltage ~32.0V
Max Charge Current 30A
Max Discharge Current 150A
Peak Current (3S) 500A (3S)
Operating Temperature -20~60℃
BCI Group Size 0
Terminal 3/8-16 NMC
Water Rating Water Resistant

Please read our frequently asked questions page for answers commons questions regarding lithium ion batteries.

Bluetooth Manual

Ionic Deep Cycle Manual

Performance Curve

Golf Lithium Battery Wiring Diagram

Customer Reviews

Don't just take our word for it! See real feedback from our customers

experience the advantage of ionic brand lithium batteries

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11 year

Buy with confidence with our competitive no-nonsense 11 year warranty.

grade a
cells only

Ionic uses the best cells so your battery lasts longer and performs better.


Monitor your charge at any time from our user-friendly Ionic mobile app.


Ionic batteries are 100% compatible and safe with Yamaha and Mercury motors

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get the battery of tomorrow, today


50 percent lighter


zero maintenance


2x the power


5x faster charging

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Our Lithium LiFePO4 batteries bring you revolutionary technology ahead of its time. As the creators of the Ionic brand, we combine powerful lithium, Grade A battery cells, and Bluetooth monitoring for a battery that lasts longer, works harder, and plays smarter. With LithiumHub, you’re guaranteed 100% US based support, plus a competitive, no-nonsense 11-year warranty.

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