SKU: 49259482103

EPOCH 48V 230Ah (11.04kWh) - LiMax Series - Lithium (LiFePO4) Golf Cart Battery - Complete Kit

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Description

EPOCH 48V 230Ah (11.04kWh) - LiMax Series - Lithium (LiFePO4) Golf Cart Battery - Complete KitComplete Lithium Conversion Kit 51. 2V 230Ah LiFePO4 with Charger, Battery Gauge, 12V Converter, Bluetooth, and OTA Updates Upgrading to lithium should do more than replace old batteries. It should give you stronger performance, longer service life, easier system management, and fewer day to day headaches. That is exactly what this Complete Lithium Conversion Kit is built to deliver. Designed for compatible 48V electric vehicles and equipment, this

Complete Lithium Conversion Kit 51.2V 230Ah LiFePO4 with Charger, Battery Gauge, 12V Converter, Bluetooth, and OTA Updates

Upgrading to lithium should do more than replace old batteries. It should give you stronger performance, longer service life, easier system management, and fewer day-to-day headaches. That is exactly what this Complete Lithium Conversion Kit is built to deliver.

Designed for compatible 48V electric vehicles and equipment, this high-capacity LiFePO4 conversion kit combines serious energy storage with the supporting components needed for a cleaner, more complete upgrade. With 230Ah of capacity at 51.2V, it provides roughly 11.8kWh of stored energy, giving you the kind of runtime and output that makes a real difference in demanding applications.

This is the kind of system upgrade people choose when they are done dealing with the limitations of aging lead-acid setups, inconsistent performance, slow decline, and constant battery babysitting. If you want stronger output, longer cycle life, and a more modern lithium power system with built-in monitoring and included accessories, this kit is built to make that transition a lot more worthwhile.

A serious lithium upgrade for 48V systems

Some battery upgrades are little more than a chemistry swap. This one is a more complete step forward.

At the center of this kit is a 51.2V 230Ah LiFePO4 battery configured in a 1P16S layout, designed to provide dependable energy storage for higher-demand electric vehicle and equipment applications. LiFePO4 chemistry is well known for its long cycle life, stable output, and better long-term reliability compared to many legacy battery setups.

For users, that means more consistent performance under load, fewer concerns about premature battery wear, and a system designed for repeat use over the long haul. Whether you are upgrading a work vehicle, utility platform, or other compatible 48V equipment, this kit is built for people who want dependable power rather than constant compromise.

More usable energy with strong output capability

Capacity matters, but so does how the battery performs when the load is real.

With 230Ah of capacity, this kit gives you substantial stored energy for extended operation and dependable performance in applications where weak battery response is not an option. It supports up to 300A max continuous discharge current, with peak discharge capability of 500A for 15 seconds and 1,000A for 2 seconds. That kind of current handling makes it a strong fit for systems that need confident power delivery during demanding starts, acceleration events, or other short-duration surges.

On the charging side, the battery supports up to 230A continuous charge current, helping it keep pace in systems where charging performance matters.

In plain terms, this is not built for light-duty energy storage. It is designed for applications where runtime, power delivery, and system stability all matter at the same time.

Complete kit with the key components already included

One of the biggest frustrations with battery conversions is discovering that the battery is only part of the job. Chargers, converters, monitoring, and compatibility details can quickly turn a simple upgrade into a pieced-together project.

This kit helps solve that problem by including the key components needed for a more complete lithium conversion:

  • 48V 22A lithium charger
  • battery gauge
  • 12V converter

That makes integration more straightforward and gives users a better starting point for a clean system upgrade. Instead of hunting down separate parts and hoping everything works together the way it should, you get a package designed to support a more seamless conversion process.

Bluetooth monitoring makes ownership easier

Good power systems should not leave you guessing.

This lithium conversion kit includes Bluetooth connectivity with app support for both iOS and Android devices, giving you an easier way to monitor battery status and system performance from your phone. That means you can check key battery information without digging into the setup or relying on guesswork.

For everyday users, that means simpler ownership and better visibility. For installers and technical users, it adds a more modern layer of monitoring that makes troubleshooting and system checks more convenient.

Over-the-air firmware updates add long-term flexibility

A smart system should be able to improve over time, not stay locked in place.

This kit supports over-the-air firmware updates, allowing system optimization and updates without creating unnecessary hassle. That helps keep the battery system current and adds another level of long-term usability for customers who value performance, support, and a more connected ownership experience.

It is a practical feature, but an important one. In a market full of products that feel outdated the moment they are installed, that added flexibility matters.

Built for repeat use and long service life

Cycle life is one of the biggest reasons people move to lithium in the first place, and this kit delivers where it counts.

Rated for up to 4,000 charge-discharge cycles, this LiFePO4 system is designed for long-term use in applications where the battery is not just sitting in standby. It is built to be used, recharged, and used again without the steep performance drop-off that frustrates so many owners of older battery technologies.

That long cycle life helps support better long-term value, especially for users who rely on their equipment regularly and want a battery system that can justify the upgrade cost over time.

Designed for safe and stable operation

Performance is only useful if it comes with control and consistency.

This kit is built around LiFePO4 chemistry, which is widely chosen for its safety profile, thermal stability, and dependable performance in demanding energy storage applications. Combined with support for high continuous and peak currents, it is engineered to provide strong output while maintaining system stability.

It also operates across a wide voltage range of 40V to 58.4V, with a maximum charge voltage of 58.4V, giving users the operating window needed for proper integration into compatible 48V systems.

Expansion and system fit

This battery supports a maximum of two units in parallel, giving users some room to scale within the platform’s design limits. That added flexibility can be valuable for applications that may need more capacity over time, while still keeping the system within the intended configuration range.

The battery measures 23.5 x 14.4 x 9.9 inches and weighs 196 pounds, so it is clearly built as a substantial energy storage solution rather than a lightweight consumer battery. That physical footprint reflects the serious capacity and output this kit is designed to provide.

Why customers choose this lithium conversion kit

Customers considering a kit like this are usually trying to solve a real-world problem. They want more runtime. More dependable output. Less maintenance. Less voltage sag. Less frustration from battery systems that feel worn out before the job is done.

This kit stands out because it combines the core things that actually matter in a lithium conversion:

  • 230Ah of high-capacity energy storage at 51.2V
  • Roughly 11.8kWh of stored energy
  • LiFePO4 chemistry for long cycle life and dependable performance
  • High discharge capability for demanding loads and surge events
  • 48V 22A lithium charger included
  • Battery gauge and 12V converter included
  • Bluetooth monitoring through iOS and Android apps
  • Over-the-air firmware updates for ongoing optimization
  • Up to 4,000 cycles for long-term value
  • Expansion support with up to two batteries in parallel
  • 11-year warranty for long-term confidence

 

If you are looking for a basic low-cost battery replacement and do not care about runtime, smart monitoring, or long-term durability, this may be more system than you need. But if you want a serious lithium upgrade with strong output, included conversion components, and better long-term ownership, this kit makes a lot more sense.

It is built for people who want more than a battery swap. It is built for people who want a better-performing system.

Specifications

Cell Configuration: 1P16S
Chemistry: LiFePO4
Capacity: 230Ah
Voltage: 51.2V
Stored Energy: Approx. 11.8kWh
Max Continuous Discharge Current: 300A
Max Charge Current: 230A continuous, 500A @ 15s
Max Peak Discharge Current: 500A @ 15s, 1,000A @ 2s
Series | Parallel: Max (2) in parallel
Max Charge Voltage: 58.4V
Operating Voltage Range: 40V to 58.4V
Charge Temperature Range: 0°C (32°F) to 55°C (131°F)
Discharge Temperature Range: -20°C (-4°F) to 60°C (140°F)
Storage Temperature: 0°C (32°F) to 35°C (95°F), max 12 months
Weight: 196 lbs
Dimensions (L x W x H): 23.5 x 14.4 x 9.9 inches
Warranty: 11 years

Product Summary

The Complete Lithium Conversion Kit is a high-capacity 51.2V 230Ah LiFePO4 upgrade designed for compatible 48V electric vehicles and equipment that need stronger performance, longer cycle life, and a more complete lithium conversion solution. With roughly 11.8kWh of stored energy, Bluetooth monitoring, over-the-air firmware updates, a 48V 22A lithium charger, battery gauge, 12V converter, and support for high continuous and peak discharge currents, it is built to deliver dependable real-world power with less compromise. Add in up to 4,000 cycles and an 11-year warranty, and you get a lithium conversion kit designed for long-term reliability, not short-term convenience.


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SKU: 49259482103

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4.7 ★★★★★
Based on 12 reviews
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Verified Purchase
Blueking
Massapequa, US
★★★★★ 5
Wish I invested in the Playstation 5 sooner
Style: PS5 Disc, Configuration: Console only
Before buying this I had the Switch 2 and Xbox Series X; however, after buying the Playstation 5 I am blown away right out of the box. The Series X and PS5 are both 4K next generation systems, and though the Series X has the 12 teraflops graphics processing the PS5 looked way batter on my 4K TV. I also like the added functionality of the controller adding to the gaming experience with the touch pad, microphone, and gyroscopic motion control. The console is even turns on automatically by changing TV to the system's HDMI input and puts the TV into gaming mode. That is something the Series X and Switch 2 of course never have done. One down side is the system is notorious for not supporting audio cds which going back the original Playstation in 1994 the brand was always able to support. Plus if you get a cd stuck in the disk drive like what I did recently Sony made it possible to remove the disk without destroying you console in a few easy to follow steps. That saves gamers alot of money in repairs if something like that were to ever occur which is a well thought out solution. With former Xbox exclusives moving to the Playstation 5 I highly recommend adding this system to your collection.
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Reviewed in the United States on March 7, 2026
C
Verified Purchase
Christopher Pike
Fort Morgan, US
★★★★★ 5
Quality Thumping Boombox
Color: Black, Color: Black
I've been a longtime user of JBL products, but the Boombox has been my favorite speaker in their entire lineup. The built in handle, waterproof design, and fantastic battery life are what drew me to it in the first place. I owned the original Boombox for nearly 8 years. It survived dozens of camping trips in extreme heat, and was tested by FL beach trips, one of which ended in a violent rainstorm. It never failed me and could hold up to any abuse, which is why I have no problems recommending their Boombox lineup to anyone. My excitement for the Boombox 4 grew when I found out it would use an easily replaceable battery, simply by popping off the bottom cover. I had to replace the internal battery of my BB1 after 7.5 years, and it was a terrible experience that took around two hours, and was very frustrating at times. I told myself I would never buy another Bluetooth speaker that didn't have a hot-swap style battery compartment. I'm happy to see that the new speaker lineup does this. SPECS The new JBL Boombox 4 has significantly more power than the original model from 8 years ago. We're talking a jump from 40 watts to 200 RMS watts on battery power. That, combined with the larger drivers let me know that I was in for quite an upgrade. If you already have the 3rd gen BB3, I would think this wouldn't be a significant upgrade for you, but coming from the OG BB1 it most certainly was for me! The ports on the rear flip cover are power and USB Type C. APPEARANCE After unboxing the new Boombox 4 I could tell it was a bit larger than the old Boombox 1, but not by much. I'm happy to see JBL go back to a handle that appears to be a part of the speaker, instead of looking like it was thrown on as an add-on, like that of the Boombox 3's handle. It's also comfortable to hold, and the weight distribution of this speaker is spot-on. I can't tell that this new speaker is 1.5 pounds heavier than the BB1. Overall it's a very good looking speaker. The pictures don't do it much justice. You need to see it in person to really appreciate the craftsmanship. INDOOR LISTENING My initial listening experience with the new BB4 was ear-to-ear grin worthy. I immediately realized this upgrade was legit! There's so much more lower end grunt. While playing indoors at lower volumes, I found that for certain music genres I really appreciated the low-end bass boost mode. It provides the thump you crave, even at low levels. As you raise the volume up to anything over half, I find the bass boost unnecessary, and perhaps even a bit overpowering. That's likely subjective to each persons personal tastes, as well as music genres. It's nice to have the option to use it when you want it. OUTDOOR LISTENING My OG BB1 was my favorite go-to speaker for outdoor Bluetooth music sessions, and this one excels even more at that. The BB4 has significantly more power on offer, so it's easier to fill any space with fantastic sounding music. With our modest sized corner lot, I find that keeping its volume around the 50% point is plenty to fill our yard with great sound, while not being distracting to any neighbors who may be around outdoors. What impressed me most with the new speaker is how much further and clearer both the highs and low frequencies come through. With the BB1, once I walked away more than 20 feet the bass really fell off and wasn't too noticeable, but with the BB4 I can still hear the low notes from that distance. I'm truly impressed at what the BB4 can do as an outdoor speaker. To respect my neighbors, I didn't run the Boombox 4 at maximum output, but for the brief time I had it up around 80% it was obvious that this speaker is plenty loud for most people. AURACAST Next I paired the Boombox 4 with my PartyBox 520, using Auracast. I turned on both speakers, started playing music from one, then hit the Auracast button on each. Within 5-8 seconds they paired up and were in sync with each other. Obviously pairing a speaker like the Boombox 4 along with a much larger one like the Partybox 520 is going to create a situation where you mostly hear the larger speaker. This leads me to the decision that the best way to utilize a setup like this is to run one indoors and the other outside. For a nice sized party, the Boombox would serve well indoors and the PartyBox would be perfect outside. CONS If I had to knock JBL for anything with the new BB4, it would be their decision to omit the 3.5mm aux port. This was a feature all the previous models had. I know there's a USB Type C port for lossless audio playback, but it doesn't work with a Type C to 3.5mm aux adapter. I enjoy projector movie and game nights, and I used my BB1 for the audio when viewing content with the projector by way of a simple aux cable. I did a bit of research and discovered that my Google Chromecast has Bluetooth audio playback available, but not the Roku streaming stick that I've always used for the projector. I was able to connect the Boombox 4 to my Chromecast and use it to play the audio, so I'm thankful that works! Still would have loved a 3.5mm aux port. SUMMARY JBL continues to impress with their newer lineup of speakers. As bittersweet as it was to let it go, I'm happy to be rid of the Boombox 1, as the Boombox 4 is an amazing upgrade in nearly every way. I won't have to worry about complex battery swaps in the future, which is probably the main reason I went for the upgrade. I'm happy with the extra power this speaker puts out. For anyone looking for an all-purpose, outdoor Bluetooth speaker, this is the one! No need to worry about water or dust interrupting your music sessions. Stop thinking about buying a Boombox 4 and just pull the trigger!
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Reviewed in the United States on September 30, 2025
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Verified Purchase
Dimitri
Battle Creek, US
★★★★★ 5
Perfection.
Color: Black
HANDS DOWN THE BEST BLUETOOTH SPEAKER ON THE MARKET. I have bought pretty much every BT speaker on the market (obsessed). I'm an audiophile and my main system is worth 10s of thousands. I had multiple jbls, bose, and a whole slew of different brands i dont care to list. I gave away most of them to justify buying new toys (my friends love it lol). I am not giving this thing away EVER. All my previous complaints have been addressed. Replaceable battery, stable base, lighter, smaller and double the output. For indoors i use a custom EQ to tame the bass. Because it is RIDICULOUS (alot of overhead!). I crank up the treble to sharpen it up and I find that 30% volume will fill most indoor spaces with excellent, long playtime and sharp music while barely trying! It has plenty of overhead to deliver excellent volume and presence for the beach and any outdoor event up to 60 people. This is the perfect setup. Need more coverage? order a second one for stereo (i will). This is the end game Bluetooth speaker. Everything else is a mere shadow of this beast regardless of price. JBL knocked this out of the park. My search has ended.
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Reviewed in the United States on December 24, 2025
T
Verified Purchase
Terrence Cecil
Battle Creek, US
★★★★★ 5
Excellent upgrade from Boombox 3
Color: Black
This bluetooth speaker packs a good punch without flooding the overall soundscape with excessive bass rattle. Great sound at good value.
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Reviewed in the United States on May 23, 2026
B
Verified Purchase
Brock Isaacks
Massapequa, US
★★★★★ 5
Bass Forward, Heavy physicality, Excellent upgrade!
Color: Blue, Color: Blue
I would like to start this by saying that I’m having to rewrite this as my first one violated community guidelines so I guess. But I wanted to preface that I have owned at least 1 of every generation of the JBL Boombox Series (1 OG BB, 2pair Gen 2, 2 pair Gen 3, 2 for the current JBLboombox 4!! I’m also extremely into audio and technology and speakers are an expertise of mine! I personally think that this was the biggest leap forward in the series and although I am still disappointed we reverted back to a 2-way system instead of the pioneering 3-way set up and that is a bummer but as far as feeling the music, want bass? Can’t get enough. These Boombox 4 CRANK that low Freq and can sustain a sub 40 Hz base note on battery for extended periods of time. I had no idea that physics would allow such a small item to create base like it does and that’s given proper acoustics of the room of the hallway ~~you know, you put your speaker somewhere and you’re like it sounds the best right here. That’s the soundstage (ish) but wow! The two base boost options are awesome and remind me of the OG BB with what was called “home and outdoor mode” When I’m rocking my stereo pair of Boombox 4s I basically always have the bass boost feature turned on the deep base (mode 1) and the other option (mode 2) is to have “punchy base” however I don’t recommend that one. Overall super happy with Bluee & Squad box! I will say that the only lighting feature on it is to me a very useful and fun incorporation of LEDs into a portable speaker as the color whether orange or white will show you from a distance what bass mode you’re in but also, you can verify it by a glance and rockin’ these dark orange glows, white punches or nothing at all. :) Oh and the Original JBL I got in 2017 is still working like a charm in a buddy’s garage of mine (battery is shot, must stay plugged in to use) But JBL will last a long time, there’s such a big variety to choose from on the Bluetooth market these days that you can find a speaker for any size occasion or prefer preference. Lastly…✅✅✅✅ AURACAST ✅✅✅✅HAS BEEN FLAWLESS!! 🤩 as I had connection issues with every type of linking JBL’s had to offer since Connect… so JBLs Connect, Connect+, partyboost, ect ….. no good! ESPECIALLY in a dang stereo pair. Now when I turn on both speakers, they automatically link into stereo mode and it is simple as can be and they haven’t even hiccups once for the hundreds of hours they’ve played music already. Well I hope this finds someone who I intent it too, That’s all folks!
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Reviewed in the United States on December 18, 2025

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