Not always. Sometimes it needs a charge cycle to recalibrate. For example if you leave during the summer and when you return the SOC displays 95%, that may not be correct. To keep it accurate you should plug in the charger and let it run until it stops.

The battery needs a re-boot. Press the silver button on the battery for 5 seconds. The battery will shut off and then re-boot. The full range will be available.

Thanks to evolving technology, today's lithium batteries are compatible with all golf carts. The engineers have been diligent in their efforts to overcoming the various challenges associated with making a battery that is universally compatible.

Zero maintenance.

As of July 15, 2023 a new set of Trojan 8-volt lead/acid batteries, installed including pickup/delivery fee, new cables and sales tax is currently about $1675. (Don't be surprised if there are additional charges for various recommended parts and services.)

Lithium Battery guaranteed low price. My factory-direct prices can't be matched. I have low overhead, no distributor markup, and no dealer markup. Please don't confuse my low prices with low quality.

eRun LiFePO4, 48-Volt 105Ah lithium battery & with charger = $2195 installed (with charger trade-in).

(You can drive a maximum of 55 miles on a full charge.)

I'm glad you asked. I'm your neighbor so my reputation is extremely important.

eRun Lithium batteries are manufactured at the same factory as 2 of the 4 leading US lithium battery providers. With the advice of experienced lithium battery engineers my component choices are based on reliability over cost. The industry is evolving, "New and improved" lithium battery components are frequently offered, but until the reliability is proven I stay with what I know works.

I recommend the 105ah battery.

The eRun 105aH battery has about 120% of the range that a regular set of 8-volt batteries have.

More is better.

Fully charge the battery. Unplug the charger.  Most of the batteries will automatically go into Sleep mode after 7 days. Pressing the silver button for 5 seconds will re-activate the battery. If your battery does not have the silver button 1) unplug the charger from the golf cart and the wall plug, 2) plug in the charger to the wall outlet 3) plug the charger into the golf cart. Note- The after a few weeks or more of non-use the Percent Of Charge will not be accurate until the battery is fully charged. The voltage displayed will be accurate. A fully charged battery will have 54 volts (plus or minus 1/2 volt).

After about 4000 charge cycles the battery will still deliver 80% of the original capacity. The life expectancy is 4000 charge cycles. It's difficult to translate 4000 charge cycles into life expectancy in terms of years. Charging after one round of golf is about 40% of a charge cycle. Under ideal conditions, 3 rounds of golf per week equals about 70 years of battery life. (Folks, I'm not making this up.)

No memory effect. In the past, lithium batteries had a memory issue where you could not charge them unless they were almost dead, but that is not a problem anymore.

I am the US agent for the manufacturer's battery warranty. The warranty is non-transferable. The warranty term is 7-years, prorated. Normal exclusions for misuse, etc. The charger is 100% guaranteed for 2-years.

If your battery malfunctions call me ASAP. If the battery is dead or if the capacity falls below 80%, the battery will be eligible for immediate repair or replacement, subject to the provisions of the warranty.

Remember! The warranty only covers malfunctions of the battery or charger. There will be a $75 show-up fee if the issue is not directly related to a battery or charger malfunction.

In order to maximize the life of the Lithium battery, a Lithium Battery Charger is required. Lithium chargers will charge the batteries quickly and turn off when charging is complete.

The chemical composition of an eRun battery is LiFePO4. Unlike nickel based Lithium ION, LiFePO4 It is recyclable and fireproof. Another description for LiFePO4 is: Lithium Iron Phosphate, also known as LFP.

Disposal of your old batteries is included with the installation.

I can usually install the lithium battery within a day or two. The conversion process takes about 1 hour. (Two hours if you watch and 3 hours if you help.)

The battery will go into sleep mode after 7 days on non use. Plugging in the charger will restart the battery.
Follow this procedure. 1) unplug the charger from the golf cart and the wall plug, 2) plug in the charger to the wall outlet 3) plug the charger into the golf cart. Note- The after a few weeks or more of non-use the Percent Of Charge will not be accurate until the battery is fully charged. The voltage displayed will be accurate. A fully charged battery will have 54 volts (plus or minus 1/2 volt).

The discharge curve is not a straight line decline.  The SOC drops fairly fast from 100% to 90%. The middle range (90%-50%) has a slower drop in the discharge cycle. Towards the end of the discharge cycle the decline is again rapid. If the battery shuts off before the SOC reaches 0% it will probably happen when the battery is under a heavy load (going up a hill). The silver button will restart the battery. If the SOC is above 5% you can drive it about 2-miles if you drive easy.

The charger could take about 5-hours if the battery is completely dead. The charger will shut off when it finishes charging the battery. If you unplug the charger before it finishes the full charge cycle you might only have 90% of the full capacity even though the SOC shows 100%.   It’s like filling up your car. The gauge might show full but you can still squeeze in another couple of gallons.  After the charger shuts off the best practice is to unplug from the wall outlet. 

There is no memory effect so there is no rules about when to charge. The manufacturer advises keeping the battery fully charged as much as possible.

The warranty covers ONLY the battery and the charger.  The Lithium battery outputs current to your golf cart’s existing electrical system. The output current from the Lithium battery is virtually the same as the output current of a set of lead acid batteries so there is no reason to expect any before and after difference in the lights. For unusually dim lights check for a faulty light switch, faulty voltage reducer or corrosion in the golf cart’s wiring harness. NOTE!! If the issue is not a battery or charger malfunction there is a $75 show-up fee.

No. Use “TOW” when towing the golf cart. Or when the golf cart is idle for more than 2-weeks.

First press the silver button for 5 seconds to put the battery into Sleep mode. Before using the golf cart, you must completely dry everything thoroughly, even though the battery and connections can get wet. Plug in the charger to re-start the battery.
Follow this procedure. 1) unplug the charger from the golf cart and the wall plug, 2) plug in the charger to the wall outlet 3) plug the charger into the golf cart. Note- The after a few weeks or more of non-use the Percent Of Charge will not be accurate until the battery is fully charged. The voltage displayed will be accurate. A fully charged battery will have 54 volts (plus or minus 1/2 volt).

If you have concerns about the range you will need to do a 10-mile test run. Results will be submitted to the manufacturer. They can analyze the condition of the battery from the voltage readings during the test. Must be on level roads and one person the golf cart. Avoid stop and go driving. The test should take you 30-40 minutes. Create a 5-mile route with Google Maps and the MEASURE function. I’ll need a screen print of the map you make. Before you leave, run the charger until it stops and take a photo of the SOC meter.    After the first 5-miles get a 2nd photo of the SOC. After last 5-mile route take another photo of SOC. 3-Photos and a screen capture of the map will be needed.