The hill is a load test. A tired pack or a loose cable sags there and feels normal on the flat.
The answer for a cart that is slow only uphill
Measure resting voltage first, then consider the load. Do not buy a higher voltage to win the hill.
Big tires make the same pack slower on the same hill. The tire did not rewire the cart.
If the answer depends on your cart, send the make, model, year, voltage, and a tray photo. An article can state the rule. It cannot see your tray.
Hold that answer while you read the shop notes under it. The notes are the same rules we use on every cart. The answer above is the part that is specific to a cart that is slow only uphill.
A load test the household can actually do
Charge the cart, unplug it, rest it, and write down the pack voltage. Then have a helper press the pedal with the drive wheels safely off the ground, or drive up the usual hill while you watch a meter that is connected safely and out of the moving parts. A lead pack that falls apart under that load, while it looked fine at rest, is tired. A pack that holds voltage and still does not move is not a battery problem.
Do not do this with the meter leads in your hand while you drive. Clamp the meter where you can see it, or have the helper only on the pedal with the cart on stands. If you are not comfortable around the posts, stop and send photos. A short across a 48-volt string is a serious burn.
Controllers and batteries are separate decisions
A stock controller expects the pack voltage the cart was built with. A lithium pack of that same voltage is a battery change, not a controller change, on the ordinary conversion kits we sell. A high-amp controller, a lifted cart with a speed project, or a 72-volt build can outgrow the stock solenoid. That is the Curtis Albright conversation.
Do not buy a controller because a battery article mentioned one. If the cart is stock and the complaint is range or watering, the battery and the charger are the job. If the cart was already modified, tell us what the controller label says before we recommend a pack.
Watering is only for flooded batteries
Flooded lead-acid batteries use water. AGM batteries and lithium batteries do not. If the caps unscrew and you can see liquid, the battery is flooded. If the case says AGM or sealed, leave it closed. Charge first, then water. Charging raises the level. Fill a low battery before charging and acid can overflow when the charge finishes.
Use distilled water, only enough to cover the plates, usually about a quarter inch under the fill well. Tap water leaves minerals. Do not pour in battery acid to top off a battery that only needs water. Overfilling pushes acid onto the tray and eats cables. Underfilling exposes the plates and cuts capacity for good. One battery that is always thirstier than the others is the weak one.
Factory lithium is not a lead-acid conversion
An EZGO RXV ELiTE left the dealer with a Samsung lithium pack, not a tray of flooded batteries. ECO’s fitment notes for the replacement split by generation. Gen 1 uses a Skinny case, best on about 2017-2021 trays. Gen 2 uses a Thru-Hole case, best on about 2022 and later trays. A standard RXV metal-tray or plastic-tray conversion kit is the wrong conversation.
Ask whether the cart was lithium from the factory before you quote a lead-acid set or a conversion bracket. There is often no core to return, because there were no flooded batteries. Year and tray generation come before amp-hours.
What a Bedrock kit includes
Bedrock Battery is based in Peachtree City, Georgia, and sells cart-specific conversion kits. Six sizes: 36V 105Ah, 48V 65Ah, 48V 105Ah Compact, 48V 105Ah Slim, 48V 150Ah, and 72V 105Ah. The two 48V 105Ah shapes hold the same 5.38 kWh. The 48V 105Ah battery weighs 95.9 pounds and is rated up to 6,000 cycles.
The kit includes the battery, a waterproof 15-amp lithium charger, a charge port, a state-of-charge meter, the bracket, ring terminals, and bolts. It does not include the 12-volt converter. Kit warranty is 10 years and transferable. Heated versions exist for cold charging. Ask about lead time. Lithium golf cart kits from every brand we sell ship free to the lower 48 by curbside truck freight.
Pay later at checkout
Klarna and Afterpay are enabled as Stripe payment methods for this store. You will see the methods Stripe offers for that order when you check out. Availability depends on the order total, the currency, and Stripe’s decision for that customer. The floor we talk about on the site is for orders in the range those methods are aimed at. This article does not promise a 0 percent rate, and it does not promise that a button is on every product photo.
Pay later does not change fitment. A financed wrong kit is still the wrong kit. Confirm the cart first, then choose how to pay.
Storage when a cart sits
Seasonal homes, island houses, and lake cabins leave carts parked. A flooded pack left discharged sulfates. Charge it fully before you leave, and arrange a top-up if the sit will be months. AGM tolerates sitting better and still should not be left flat. Lithium prefers the storage state of charge in its own manual, which is not ’empty’ and not always ‘100 percent forever.’
Unplug a charger that is not a maintained float designed for that chemistry. Take the key. If the storage is humid or salty, clean the posts before you walk away. A cart that sits on a flooded garage floor in a storm zone should have the charger and the batteries up off the slab.
Car batteries do not belong in a golf cart
A car starting battery is built to deliver a short burst and then be charged by an alternator. A golf cart battery is a deep-cycle battery, built to be discharged and recharged. Six car batteries in a cart will sag, sulfate, and die early. They are also the wrong height and the wrong post for most trays.
The same warning applies to a random 12-volt deep-cycle from a trolling-motor aisle if you are about to series four of them without checking the tray, the cable gauge, and the charger. Four 12-volt deep-cycle golf batteries can be a legitimate 48-volt string. Four car batteries cannot. Ionic and Antigravity starting batteries in this shop are for mowers, boats, and powersports, not for traction in a Precedent.
Parts and pages that match this
- Fitment guide
- Shop
- Lead-acid vs lithium
- Shipping
- Returns
- Warranty
- Contact
- Chargers
- Parts
- 48V/72V converter
- Contact
- Fitment guide
- Bedrock
The price for a cart that is slow only uphill is the price on the product page, not a number in this article. Lithium golf cart kits from every brand we sell ship free to the lower 48 by curbside truck freight. Parts, chargers and small batteries ship free on orders of $150 or more, or $14.95 below that. Interstate lead-acid batteries ship on a freight quote: we call you with the price before we charge shipping. We ship a cart that is slow only uphill. We do not list a storefront address. Local delivery is only the area named on the shipping page. A city page on this site is not a statement that a driver covers that city.
