Product Overview
One case replaces the whole lead-acid bank. This 48V 100Ah pack is a lithium golf cart batteries 48V conversion kit in a single sealed unit — a LiFePO4 battery built into a metal case that drops into the battery well of a 48V cart. Instead of a row of lead-acid blocks wired in series, watered and equalised through the season, you fit one pack, connect two terminals and close the seat.
The layout is deliberately plain: a compact rectangular case with lifting handles on top, front-mounted M8 studs so standard cart cables bolt straight on, and a sealed body with nothing to top up.
It is a 48V LiFePO4 battery first and a golf cart part second. The same pack turns up in off-grid cabins, RV auxiliary banks, boat and trolling motor systems and workshop backup, wherever a metal-cased lithium pack is preferred to a plastic one. If your cart runs a 48V system, this is a direct swap for the set you are retiring. If it runs 36V, look at the 36V versions of the same kit instead.
- No watering, no equalising. A sealed LiFePO4 pack needs no attention between rounds: no topping up cells, no acid mist eating the terminals, no monthly equalising charge. - Top it up whenever it suits. There is no memory effect, so a partial charge after a short run costs nothing. A golf cart lithium battery treated this way holds its capacity far better than a lead-acid set left half-charged for weeks. - Voltage holds under load. A deep cycle lithium battery keeps its working voltage across most of the discharge, so acceleration and hill climbing feel the same at half charge as at full. - Sized around the 100Ah format. This is a 100Ah lithium battery for golf cart duty — built for a full day of short runs rather than one long haul. - Noticeably lighter than the bank it replaces. Half a dozen lead-acid blocks plus tray hardware weigh far more than one pack; you notice it in steering, in tyre wear and every time you lift the seat. - Stores without sulking. Left part-charged over the off-season, a LiFePO4 pack does not sulphate the way lead-acid does. Bring it back to full before the season starts and it picks up where it left off.
- Course fleets on daily rotation. Carts that go out four or five times a day, come back, get plugged in and go out again — the duty cycle a 48V lithium golf cart battery is built for. - Large properties and estate carts. Long driveways, paddocks and a loaded bed; the pack holds voltage across repeated short trips instead of sagging by mid-morning. - Winter and cold-morning play. Discharge stays available below freezing, and the BMS stops the pack being charged onto frozen cells after a cold night in the shed. - Off-grid cabins and solar storage. The same pack banks solar input and runs lights, a pump or a fridge inverter where a 48V bank is specified. - RV, boat and trolling motor auxiliary. Used as a house bank for 48V accessories, with the metal case standing up to a damp locker. - Workshop and backup power. Kept charged for a power cut, or for a job that needs a 48V supply away from mains. - Why 48V golf cart batteries suit this. Most modern carts already run a 48V system, so the wiring, solenoid and controller stay exactly as they are and only the energy store changes.
Rugged Metal Case Design
The case is the reason this pack suits carts that live outdoors. Where most 48V packs use a moulded plastic shell, this 48V lithium golf cart battery sits in a sheet-metal case: it resists fire rather than feeding it, shrugs off knocks from tools and cargo rolling around the battery well, and does not crack when a cart is parked in the sun all summer. Two details on the front panel matter day to day. The pressure relief valve vents internal pressure if a cell ever overheats, instead of letting the case split at a seam. The one-touch power switch isolates the pack completely, so a cart stored for weeks does not drain itself slowly, and a technician can work on the wiring with dead terminals. Inside, the cells are packed tightly so the footprint stays as small as the capacity allows.
Battery Management & Protection
- The board that runs the pack. Every 48V lithium golf cart battery lives or dies by its BMS, and this one regulates charge and discharge current, watches cell voltage and temperature, and disconnects the pack when something is out of range.
- Continuous power for a loaded cart. The board passes the current a four-seater with passengers and clubs actually draws, so a full cart on a slope is not what limits you.
- Short-burst headroom. Hill starts, ramp approaches and towing pull far more than cruising current for a few seconds; the pack allows that burst without shutting down.
- Over-charge and over-discharge cut-off. Charging stops at the top of the range, and the load disconnects before the cells are drained too far.
- Over-current and short-circuit protection. A chafed cable or a spanner dropped across the terminals trips the BMS instead of cooking the pack.
- Over-temperature protection. If the case runs hot, charge and discharge are held back until it cools.
- Low-temperature charge lockout. A deep cycle lithium battery should never be charged onto frozen cells; the BMS blocks charge current below freezing while leaving discharge available.
- Cell balancing. The board levels the cell groups so capacity does not drift over the years.
- If it ever trips. The pack shuts itself down rather than failing: switch off, wait a minute, find the cause, then restart. A pack that trips twice in a week is telling you something on the cart needs fixing.
Charging & Battery Monitoring
Charging is where most conversions go wrong. A 48V LiFePO4 battery wants a lithium charge profile — constant current up to the top, then a clean stop — not the tapering finish a lead-acid charger applies. This lithium golf cart batteries 48V conversion kit ships with its own 18A charger, matched to the pack; plug it in at the end of the day and it brings the pack back to full and holds it there, with the charger and the BMS each watching the top of the charge.
There are two ways to see what is happening. The supplied LCD monitor can be mounted on the dash and shows state of charge, pack voltage, current draw and battery temperature. The same readings arrive over Bluetooth in the phone app, along with remaining working time and a state-of-health figure, so a fleet manager can check a cart before it goes out without lifting the seat.
That visibility is what makes a 48V lithium golf cart battery easier to run than a lead-acid string. You can spot a slow drain, a charger that dropped out overnight or a pack running hotter than usual long before it strands anyone on the far side of the course.
Installation & Fit Check
- Measure first — confirm the cart runs a 48V system and that the tray matches the case, because the one thing that stops this lithium golf cart batteries 48V conversion kit from working is a compartment that is a little too small.
- Switch the cart off, disconnect the main negative, then lift out the lead-acid blocks and any tray hardware you no longer need.
- Set the pack in place with two people using the top handles, and bolt it down so it cannot slide when the cart leans.
- Connect the M8 terminals with the correct polarity, positive first, and tighten them properly — a loose terminal is the most common cause of a hot joint and a shutdown.
- Charge the pack to full with the supplied charger before the first run; it travels part-charged.
- Pair the monitor or the phone app, note the state of charge and the pack temperature, and you have a baseline to compare against in a month.
- Keep the old tray and cabling for a week in case anything needs refitting, then take the lead-acid blocks to a battery recycler rather than household waste.
Specifications
| Specification | Details |
|---|
| Power (Wh) | 5120 Wh |
| Rated Voltage | 51.2V |
| Rated Capacity | 100Ah |
| Operation Voltage | 40-58.4V |
| Charging Voltage | 58.4V |
| Standard Charge/Discharge | 50A/50A |
| Maximum Continuous Charge/Discharge | 200A/200A |
| Peak Current | 400A/30s |
| Maximum Peak Current | 1000A/1s |
| Cell Configuration | 2P1S |
| Dimensions (mm/inch) | 482*336*274mm / 18.98*13.23*10.79inch |
| Weight (kg/lbs) | 49kg / 108lbs |
| Operation Temperature Range | Charge: 0~55℃, Discharge: -20~55℃ |
| Terminal Type | M8 |
| Case Material | Metal Case |
Matching Batteries & Chargers
Not every cart needs 100Ah, and not every owner wants the metal case. The same platform runs through a 36V 100Ah and a 36V 102Ah version for older carts, a 48V 102Ah version with a touch monitor, and a 48V 50Ah mini pack for smaller carts and mower conversions. If you are weighing capacity against compartment size, tell us the cart model and what a normal day looks like and we will point you at the right one.
Chargers are matched by voltage: the 48V 18A unit suits this pack and the 48V 102Ah version, while the 36V kits take their own 25A charger. If you already own a lithium battery for golf cart use from the same range, check that charger's output voltage before sharing it between packs.
Everything in the range uses the same M8 terminal standard, so cables, lugs and monitor leads carry over from one pack to the next. That is what keeps every pack in this family straightforward to live with, even on a mixed fleet of 36V and 48V carts.
Ordering & Delivery
- Lead time. In-stock orders are processed in 3–7 days; custom builds take about 35 days.
- Shipping. Swift delivery from local stock, with 3–7 days for shipping on items held in our warehouses.
- Warranty. 5-year warranty on the pack.
- Returns. A 30-day return window from the day the pack arrives — contact us first so we can send the right instructions and return address.
- Before you order. Send the cart model, the tray measurements and a photo of the battery well; we will confirm whether this pack fits or whether a different capacity suits better.
- Fleet and dealer quantities. Most 48V golf cart batteries in the range can be supplied in larger quantities — ask your sales contact about supply, terms and current lead times.
- Documentation. If you need the specification sheet for a cart file or a service record, ask us and we will send it.
About Our Company
Xinyubattery is the brand of Shenzhenshi Xinyu Newenergy Technology Co.,LTD, a Shenzhen-based company founded in 2016 and working in green power solutions for more than ten years. Through a vetted network of production partners, we bring a broad range of power products together in one place and consolidate each order for you. Products are checked before dispatch, packed for export and shipped from local stock, and our team stays available for technical advice, fitting questions and after-sales help.
FAQ
Can this battery replace the lead-acid batteries in my golf cart?
Yes, on a 48V cart. A 48V LiFePO4 battery takes the place of the whole lead-acid string — six 8V blocks, four 12V blocks or whatever the cart was built around — so the series wiring, the watering routine and most of the weight all go away in one swap. The cart's controller, solenoid and motor stay exactly as they are. Check two things before the first charge: that the pack physically fits the tray, and that your charger suits a lithium profile.
Is it suitable for cold environments?
Cold weather is where lead-acid struggles and this pack is at its most useful. Discharge stays available below freezing, so a cart left in an unheated shed will still run on a frosty morning. Charging is the part the BMS guards: it blocks charge current when the cells are too cold to accept it safely and releases once the pack warms up. Expect usable capacity to drop in very low temperatures — that is normal for any lithium golf cart battery — and charge in a sheltered spot where you can.
What applications is it well-suited for?
Golf carts come first: 48V carts used daily, on hilly courses, or on large properties where a lead-acid set runs out before the day does. Beyond that, a deep cycle lithium battery of this size is used for off-grid and solar storage, RV and caravan house banks, boat and trolling motor systems, and workshop backup. It is not a starter battery, and it is not the right pack for a 36V cart.
Does it include safety protection?
Yes. Protection is handled by the BMS, which monitors current, voltage and temperature and cuts the pack off when something is out of range — over-charge, over-discharge, over-current, short circuit or overheating. The metal case and its relief valve cover the physical side, so a knock or a failed cell does not turn into a fire. A golf cart lithium battery is only as safe as the electronics inside it, and the one-touch switch also lets you kill the pack entirely before working on the cart's wiring.
How long does it last?
Under normal cart use, expect more than 4000 deep charge and discharge cycles before capacity falls away noticeably — far beyond the few hundred cycles a lead-acid set manages. In calendar terms that is many seasons of daily play. What shortens it is heat, leaving the pack flat for months, and charging onto frozen cells. 48V golf cart batteries kept on the right charger and stored part-charged in a cool place last the longest.
Will it fit my golf cart's battery compartment?
The case is compact for its capacity, but trays vary: some carts have moulded plastic liners, an onboard charger sitting in the well, or a height limit under the seat that catches people out. Measure the opening in both directions and the clearance above it, then compare with the dimensions listed above. If you are within a few millimetres, send us a photo of the compartment before ordering — a lithium battery for golf cart use that fits properly is worth ten minutes with a tape measure.
Can I use my existing 48V charger?
Only if it has a lithium (LiFePO4) profile and the correct output voltage for a 48V pack. A lead-acid charger finishes with a taper and an equalising stage that a lithium golf cart battery should never see, and its float behaviour is wrong for this chemistry. The kit ships with a matched 18A charger, so the simplest route is to use that one. If you want a second charger kept in the clubhouse, check its profile with us first.
