Best 36V lithium golf cart batteries for DS, TXT, Marathon and G14

If you are keeping a 36V cart at 36V, buy the Dakota Lithium 36V 60Ah for neighborhood use or the Eco Battery 36V 105Ah if you drive it every day and want the most range. Both come with a lithium charger and both fit a Club Car DS to 1994, an EZGO Marathon, Medalist or TXT to 2009, and a Yamaha G14 or G16. If you are not sure which voltage you have, lift the seat: six 6V batteries means 36V, six 8V or four 12V means 48V.

The lithium overview explains what lithium changes; the rest of the batteries section covers chargers, cables and flooded sets. This page is specific to 36V carts, which have three wrinkles the 48V pages do not: resistor-coil speed control on the oldest ones, the EZGO PowerWise plug, and the real question of whether to convert to 48V instead. Run your mileage through the battery calculator before you buy anything.

Which 36V carts you are dealing with

Club Car DS built through 1994 is 36V; from 1995 the DS went to 48V, so a 1995 and later DS belongs on the 48V page. EZGO Marathon (to 1994), Medalist (1994 to 1995) and TXT through 2009 are 36V; the TXT48 from 2010 is not. Yamaha G14 and G16 are 36V; G19 and later are 48V.

The serial plate settles it if the batteries are already out. The Club Car, EZGO and Yamaha fitment pages show where it is on each model.

Capacity at 36V: 60Ah or 105Ah

A 36V pack is twelve cells, 38.4V nominal. At 60Ah that is about 2.3 kWh; at 105Ah about 4 kWh. A 36V cart on 18-inch tires uses roughly 140 to 170 watt-hours a mile, so a 60Ah pack gives 12 to 15 miles and a 105Ah pack gives 22 to 26.

The flooded set you are replacing, six 225Ah 6V batteries, held about 8 kWh on paper. You were only supposed to use half of that before recharging, so about 4 kWh usable. The 105Ah lithium pack matches it; the 60Ah pack gives about half. For a cart that goes to the mailbox, the clubhouse and back, 60Ah is plenty. For a cart that does a full round plus errands, buy the 105.

Resistor-coil carts and the BMS

The oldest 36V carts, EZGO Marathons and the earliest DS models among them, control speed with a resistor bank and a set of contacts rather than a solid-state controller. On the first notch of the pedal the motor sees the full pack through a resistor and pulls a hard surge of current, often 300A or more for a fraction of a second.

A lithium BMS rated 100A continuous reads that surge as a fault and shuts off. The cart lurches, dies, and comes back a second later. The fix is a BMS rated 150A continuous or more, and ideally 200A. Dakota, Eco and RoyPow all clear that bar. On an unbranded pack, the continuous rating is the one line of the listing you cannot skip.

Solid-state 36V carts, which is most TXTs and later DS models, are easier on the pack. A 100A BMS will work on flat ground, but the 150A floor still makes sense if there is a hill between you and home.

The PowerWise plug and the charger

EZGO 36V carts from 1994 on use the PowerWise charger with its D-shaped plug. Earlier Marathons used a crowfoot plug. Club Car DS 36V carts used a crowfoot receptacle too, and Yamaha G14 and G16 use a two-pin round plug. None of those chargers will charge a lithium pack; they stop at lead-acid voltage and the pack never fills.

The Dakota, Eco and RoyPow kits all ship a 36V lithium charger. What varies is the connector on the end. Most come with an SB50 Anderson plug and a matching receptacle you fit in place of the old port, which is a ten-minute job. Some sellers offer a PowerWise D-plug version so you keep the stock port. If you want a different charger, or one for the lake house, the charger guide lists 36V lithium units by plug.

Stay at 36V or convert to 48V

This is the decision most owners of a 36V cart face once the seat is up, and the honest answer depends on two parts: the controller and the solenoid.

Converting to 48V means a 48V pack instead of a 36V pack, a 48V solenoid at about $40 to $80, and a 48V controller. On a resistor cart that means adding a solid-state controller for about $300 to $600 plus a throttle input. On a solid-state 36V cart the controller may tolerate 48V, but most do not, and a 48V unit is $250 to $600. The stock series motor runs fine on 48V and gains 20 to 30 percent in speed. Add a 48V-to-12V reducer if you have lights.

Stay at 36V if the cart runs well, the controller and solenoid are healthy, and what you want is to stop watering batteries and lose 250 pounds. A 36V lithium pack is a two-hour job and costs about the same as a 48V pack. Convert to 48V if the controller or solenoid is already failing, if you want the speed, or if you are going to spend $1,700 or more on a pack anyway and would rather have the 48V’s bigger choice of kits. The faster-cart guide covers the rest of the 48V conversion.

Which pack for your cart

Cart	Years	Pick	Note
Club Car DS	to 1994	Dakota 36V 60Ah or Eco 36V 105Ah	Crowfoot port; fit the SB50 receptacle
EZGO Marathon	to 1994	Dakota or RoyPow	Resistor cart; 150A-plus BMS
EZGO Medalist, TXT	1994 to 2009	Dakota, Eco or RoyPow	PowerWise D-plug; adapter or new receptacle
Yamaha G14, G16	1995 to 2002	Dakota 36V 60Ah	Two-pin port; narrow tray, measure first
Any 36V cart, stock tray only		Allied 36V drop-in	Three 12V batteries, no bracket

Install notes

Photograph the old wiring, then pull the six 6V batteries with a strap; each is about 62 pounds. Clean the tray, mount the bracket or tray, set the pack and connect the main positive and negative to the same cable ends the old pack used. The old 4 gauge main cables are fine if the lugs are bright; the cables page has sizes if they are not.

Replace the charger receptacle if the kit came with one, charge to full before the first drive, and check that the solenoid clicks and releases cleanly. A 36V solenoid that is sticking will show up fast once the pack holds voltage all the way down.

When flooded is still the right call

A 36V cart that goes out a few times a month on flat ground does fine on a set of six 6-volt flooded batteries for about $900 to $1,400, and the calculator will confirm it. Lithium earns its price when you drive daily, when the cart sits for months at a time, or when lifting 62-pound batteries out of a tray has stopped being something you want to do again.