Lester Electrical is dedicated to enhancing the customer experience by providing excellent technical support. We want to help you get the most out of your battery charger. Please explore our service and support page and find video guides, FAQ’s and technical bulletins. These documents are provided to answer our most commonly asked questions and provide product use tutorials and installation guides.
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.
The 26610-21 Is the only aftermarket charger that will work with a Club Car cart with an active OBC
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.
The OBC By-pass kit de-activates the carts OBC, so a standard charger can be used to charge batteries and Club Cart cars
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
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
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.
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 E-Series II users manual for a complete list of these LED light codes
No, the DC Cordsets on E-Series II Chargers need to installed by a trained technician
E-Series II chargers are intended to be used with 120 VAC only
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
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
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
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
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.
“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.
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
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
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
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
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
Yes, All Lester Automatic battery chargers will terminate the charge sequence when the batteries being charged have met 100% capacity
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
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
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.)
Depending on the state of battery discharge, it can take ups to 13 hours to fully charge a set of batteries
For extended battery life, the golf cart batteries should be charged after every use
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)
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.
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.
The Lester Electrical team focuses on providing quality products for our customers. If you have questions or comments on our chargers not answered above, we are here for you. Please call or e-mail us for additional support from one of our experts.