Products Engineered & Manufactured in the USA

Products Engineered & Manufactured in the USA

Knowledge Base

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Browse common questions about Lester Electrical products, battery charging, configuration, troubleshooting, installation and support.

FAQ Topic

Battery Questions

Battery voltage, wiring, chemistry and charging fundamentals.

Do I have 6v, 8v or 12v golf cart batteries

The batteries in your vehicle should be clearly marked with your voltage output, but for wet chemistry batteries, count the number of water fill hole at the top of the battery. 6 volt batteries have 3 fill holes, 8 volt have 4, and 12 volt have 6

What is a series battery circuit?

A series battery circuit is laid out where the negative (-) terminal of a battery is connected to the positive (+) terminal of the next battery, then the negative of that battery is connected to the positive of the following battery. This sequence continues until all batteries are connected in this sequence. The voltage of all connected batteries can then be added together to determine the complete pack voltage of the connected batteries

What is the difference between Wet-Cell & AGM Batteries?

Conventional, wet lead-acid batteries require a constant current finish at the end of the charge cycle. Using a charger designed for sealed/maintenance-free type batteries on conventional wet lead-acid batteries will cause increasingly shorter run times and possible loss of battery life due to undercharging. Gel/sealed lead-acid and AGM types of maintenance-free batteries require a constant voltage finish at the end of their charge cycle.

Using a charger designed for conventional wet lead-acid batteries on these types of maintenance free batteries will result in loss of battery life and capacity due to overcharging.

FAQ Topic

BC-2500

Stationary charger setup, IPMs, remote programming and system integration.

Can I “Hot Swap “ the IPM’s on my charger?

“Hot Swapping” refers to the exchange of IPM Modules without removing power to the charger unit. The IPM’s of the BC-2500 can be removed without removing power to the entire unit

If my charger has 8 slots for IPM’s, can I install only six?

Yes, Each IPM

What is the maximum distance my charger can be from my batteries?

The maximum distance is determined by gauge of the wire used to make this connections. Please consult the users manual for additional information on maximum cable lengths

Can I remotely program my charger?

Yes, the charger can be remotely programmed through a web enabled Ethernet connection

What is an UIM?

The User Interface Module (UIM) is the main control center of the charger. It is an integral piece of the main cabinet that contains the external communication devices and manual programming rotary switches

What is an IPM?

The Intelligent Power Module (IPM) is the replaceable power module. The BC-2500 charger can hold up to 8 IPMs

Can my BC-2500 Charger be integrated into my SCADA System

Yes, BC-2500 can communicate to SCADA platforms via the Ethernet connection using SMP communication protocols

FAQ Topic

Club Car Specific

Club Car charging systems, OBC troubleshooting and replacement options.

Is my 48 volt Club Car on-board computer (OBC) malfunctioning?

If your charger does not turn on, and the measured voltage at the batteries in your cart is above 20 VDC, your onboard computer may be malfunctioning.

Are there specific chargers that will only work with my Club Car Vehicle?

The 26610-21 Is the only aftermarket charger that will work with a Club Car cart with an active OBC

How do I choose a replacement charger for my Power Drive Charger?

The Club Car OEM charger can be replaced by either a Lester Links Charger (29840-21) or a Summit Series II Charger. Using the Summit Series II charger may require the purchase of additional wiring harnesses to disable the onboard computer.

What is an OBC By-pass kit?

The OBC By-pass kit de-activates the carts OBC, so a standard charger can be used to charge batteries and Club Cart cars

How do I tell if I have a Precedent or DS Cart?

Club Car Precedent and DS Carts have different battery connections for charging the battery, the difference can only be viewed on the backside of the connector. A DS Cart will have a fuse located within the connector, while a Precedent has wires directly connected to the connector housing

FAQ Topic

E-Series II Charger Questions

Battery profiles, LED codes, cordsets and E-Series II operation.

There are flashing lights on my charger, what do they mean?

The LED Lights on your charger indicate the charge status, complete charge or any faults that may have occurred during a charge cycle. Please see the Summit II users manual for a complete list of these LED light codes

Can the charger use 120 /240 VAC?

Summit II Chargers are design to accept both 120 and 240 VAC input

How many battery profiles will my charger are programmed into my charger?

All E-Series II chargers include (2) pre-selected battery profiles. The model number of the charger indicate which charge profiles are available. Consult the users manual for information regarding pre-programmed battery profiles

How do I change the battery profile in my charger?

Battery profiles may be changed by re-positioning an internal jumper. Remove the grey rubber cover from the front of the charger and locate the 3 pin connector below the larger 6 pin. For the charge profile in position 1, the jumper must be installed between the 2 pins to the right, for battery profile 2, make sure the jumper is positioned between the two pins to the left.

Can I change the DC Cordsets installed on my charger?

No, the DC Cordsets on E-Series II Chargers need to installed by a trained technician

Can I charge lithium batteries with a E-Series/Links Charger?

Yes, The standard Wet Cell battery profiles are used (IEI) and the maximum voltage is regulated by the lithium battery controller that is part of your power cell package

FAQ Topic

General Motive Power Questions

Charging basics, storage, voltage and general charger operation.

How does “storage mode” work?

“Storage Mode” is a feature that comes with all Lester Electrical E-series, E-Series II, Summit and Summit II golf cart battery chargers. Once a manual charge session is complete, the charger goes into its “storage mode” feature when it remains connected to the golf cart and the AC Plug remains plugged into the wall.

When in storage mode, it will charge your batteries only when the following two situations occur (1) the battery voltage drops to a certain predefined voltage AND (2) 10-15 days have elapsed.

How do I connect the Lester on-board charger to my vehicle batteries?

The positive wire from the charger must be connected to the first positive(+) terminal of the series battery pack (Battery #1), and the negative (-) wire must be connected to the last negative battery terminal of the circuit

Can I use my charger (or the Lester chargers) with a GFCI outlet?

Yes, Lester Electrical chargers have controlled current production so they can be used in application where the AC power sources is controlled by a GFCI wall output

Can I swap out plugs on my 36V or 48V charger?

The DC output plugs used by Lester Electrical have different current ratings, so its important to install a DC Cordset that is rated for the current that can be produced by the Lester Charger. Contact Lester Technical Support for DC Cordset current ratings before swapping DC Plugs

What if my batteries’ voltage is too low, can they still be charged?

There is a minimum start voltage for all Lester Chargers. Lestronic 2 chargers require a DC Battery voltage of at least 70% of the rated voltage to initiate a charge sequence. Newer designed chargers such a Summit or E-Series require approximately 15 VDC for startup

Can I leave my charger plugged in for long periods of time?

Yes, the Lester Electrical Battery Charger can remained plugged into AC power for extended periods of time. It is a good idea to use an AC Outlet surge suppressor if the charger will be left unattended for long periods of time

Does my charger automatically stop charging once the batteries are fully charged?

Yes, All Lester Automatic battery chargers will terminate the charge sequence when the batteries being charged have met 100% capacity

Should the charger make noise while charging?

Ferroresonant and SCR Chargers all use a transformers to produce the current required to charge batteries, so when these types of chargers are producing current, you will hear a low level “buzz” emitting from the charger. Summit and Summit II Chargers are “High Frequency” chargers that do not use transformers, so the LED Lights are used to verify proper operation

Why is my battery charger showing a red flashing light?

Red Flashing lights indicate a fault has occurred during the charge cycle. Quick Flashing (multiple flashes per second) are less critical than slow flashing (once a second). If the charger is flashing a slow red light, it has terminate the charger cycle and further troubleshooting steps are required

How do I find the owners manual for my charger?

All manuals for Lester Chargers are available on our public website. It may be easier to search for this information using the Charger Series type (Summit II, E-series, etc.)

FAQ Topic

HF-MAX

Alarm outputs, charge logs, IPMs and charger diagnostics.

Are there dry contact alarm outputs for remote communication?

Yes, the connections to the alarm outputs are accessible on the UIM. They can either be programmed using the rotary switches on the UIM or through the remote Ethernet connection

How can I download the logs from my charger?

Yes, the charge logs can be downloaded through either a direct or remote Ethernet connection to the charger

What are the LED’s on the IPM’s indicating

The LED’s on the IPM are used to display charge status and any alarm conditions that may occur. Please see the user manual for additional explanations

FAQ Topic

Motive Power Questions – Golf

Golf cart charging, installation and battery voltage guidance.

How long does it take to charge a golf cart?

Depending on the state of battery discharge, it can take ups to 13 hours to fully charge a set of batteries

Should I charge the golf cart after each use?

For extended battery life, the golf cart batteries should be charged after every use

Should I charge the golf cart in “Run” or “Tow”?

Your batteries should always be charged with the cart in “Run” Mode.. Your golf cart should be switched to “Run” anytime you are using the cart or charging your batteries. “Tow” is only for long term storage (if you are planning to remove the batteries)

Can I use a 36 volt charger on a 48 volt golf cart?

No, a charger rated at 36 volts will not charge a vehicle that is designed to run on 48 volts. If a 36VDC charger is connected to a 48 volt cart, the charger will display an “under voltage” error within 10 minutes.

Where on the golf cart do I install a Lester onboard battery charger?

Lester onboard chargers are typically installed within the battery compartment of golf cart, however, if space inside the compartment is limited, the charger can be installed in the tray behind the seats or in the compartment behind golf club holders.

FAQ Topic

Summit II Questions

Battery profiles, CAN bus, LED indicators and charger configuration.

Which battery profile should my charger use?

The recommended battery profiles for different types of batteries are listed in the ChargerConnect™ App Users Guide which is located within the app (drop down menu>help) and on our public website

What is a battery profile?

Battery profiles are series of charge instructions that battery chargers use to fully recharge the energy that is stored within a battery. Some batteries require Current – Voltage – Current (IEI) charge routines while others may require Current – Voltage – Float (IE) charge instructions

Can I change my charger’s battery profile myself?

Battery profiles for Summit II chargers can be changed using the ChargerConnect App. Instructions for this procedure are listed in the users guide

Where do I find a list of the profiles that are pre-loaded into my charger?

The battery profiles can be viewed in the ChargerConnect App. See the Apps user manual for instruction to identify the profiles that are pre-loaded into each charger.

Can I purchase extra DC Cordsets for my charger?

Yes, additional DC Cordsets can be purchased by contacting the Lester Electrical sales department at 402.477.8988

Can I charge lithium batteries with a Summit II Charger?

Yes, The standard Wet Cell battery profiles are used (IEI) and the maximum voltage is regulated by the lithium battery controller that is part of your power cell package

What is CAN bus?

Controller Area Network (CAN) is a communication protocol that allows devices to communicate with each other without a host computer. Many electrical vehicles use this form of communication to monitor various systems o make the vehicle operate efficiently

Does my charger have CAN bus?

All Summit II Chargers are CAN bus compliant

Why is there a blue wire do on my onboard wiring harness?

On-board Summit II Chargers are shipped with a universal mounting harness. The blue wire in the harness is used to control an external lockout device that will keep the vehicle from moving during a charge cycle. Please consult the vehicle manufacturer for information in regards to this connection

How long will it take my multi-volt charger to detect the proper voltage required?

Multi-volt chargers will detect the battery pack voltage within 10 minutes of initial power up. To determine the status of this feature, establish the blue tooth connection using the ChargerConnect App, go to the dashboard and find the section below the fuel gauge that indicates a percentage of Auto Battery Voltage Detection. When this measurement reaches 100% the battery voltage has been detected

What is the difference between onboard and shelf mode charger settings?

Onboard chargers initiate the charge sequence when AC voltage is detected by the charger. Shelf mode charger require the detection of DC voltage to initiate the charge

Can I install remote LED’s on my Summit II Charger?

An accessory package may be purchased to install remote LED’s on any Summit II Charger. These remote LED’s allow the user access to valuable information if the charger is installed in an area without easy access