More info here;
What is Pulse Width Modulation (PWM) charging?
How does a Pulse Width Modulation Charge Controller Work?
The PWM charger constantly monitors the battery pack's state of charge to determine how much current to put back in.
The advanced type of Charge control ensures efficient charging of the batteries. PWMs help to regulate the often inconsistent voltage put out by power sources in order to protect the system batteries from overcharging. The PWM charger constantly checks the current battery state and self-adjusts accordingly to battery condition to send only the right amount of charge to the battery, eliminating over or under charging.
In essence, this type of charge controller works by reducing the current from the power source according to the battery’s condition and recharging requirements, which is in contrast to on/off charge controllers which suddenly cut off power transfer to minimize battery overcharging. The PWM charge controller does this by checking the state of the battery to determine both how long (wide) the charge pulses should be as well as how fast they should come.
By constantly analyzing the battery information, the PWM charge controller self-adjusts and sends the appropriate pulse to charge the battery. The PWM charger varies the length and speed of the pulses sent to the battery as needed. This is essentially a rapid on and off switch. When the battery is nearly discharged, the pulses may be long and continuous, and as it becomes charged, the pulses become shorter or trickled off.
Units with the float charging mode maintain batteries in storage that self discharge or batteries that can go weeks without use. This mode is not needed for often used carts with regular charging intervals.
This type of charge controller is idea for golf carts where deep discharge is a regular occurrence.
It provides several key benefits:
higher charging efficiency,
Optional float charging,
and healthier batteries that operate at full capacity.
Same great 48 volt 20 amp smart charger with an extended FLOAT mode.
Keep your batteries 105% charged up and ready to go.
A new twist on an old favorite.
After the charge the status light shows solid green & the LCD screen reads FLOAT
The pack is held at 54v with a very low 2-3 amp trickle as needed.
$259 with SB50 plug
Anderson SB50 cord end on every charger.
Get a short adapter for any cart below
Lightweight 9 pounds is easy to carry or store
Input AC 110-130 volts with auto restart when power is interrupted.
Aluminum heatsink case
Built in cooling fan
Multiple plug adapters available.
Fixed cord end is a common Anderson SB50
Short adapter cords available for Club Car, Ezgo, Yamaha, and more.
Switchable cord ends allow one charger to service multiple carts.
48v charger with float mode $259
UY1200z 20 amps 36 or 48 volts
with FLOAT mode
The pack voltage and current amp draw indicate this pack is in the final charging stage.
The amp hour (AH) is the actual amount of energy put back into the pack and indicates useage
Now available with Extended FLOAT mode
to keep your batteries fully charged, ready to go, and healthy longer.
The Yewey charger comes with the SB50 plug shown above.
Adapters below plug into the SB50 and into most popular carts.
Select the ADD-ON adapter to ship with your charger or
Select the Yewey charger adapter to order separately
36v charger with float mode $259
There are many choices when choosing a smart charger today.
Most of these choices ignore the fundamental needs of golf cart batteries.
Golf cart batteries require an initial charge rate equal to 10% of their capacity.
This high rate of bulk charge stirs up the heavy elements laying in the bottom of the cells and puts them back into the battery chemistry. Low amperage chargers promote stagnation of these elements resulting in shorter run time, lower amperage capacity, and eventually shorter useful battery life.
We have worked with the manufacture to develop the best charge solution for your batteries.
The Yewy 1200z has a variable output with a full 20a capacity and 60v finish
with 54v FLOAT mode available
To order select 36 or 48 volts below
Then add as many adapters as you need
Both chargers 3 stage / 20 a max
1. Ezgo TXT D style - in stock
2. Club Car 48v Round - in stock
3. Club Car Crowfoot - in stock
4. RXV & TXT48 Triangle 3 pin- in stock
5. Yamaha Nabson 2 pin - in stock
Use the other button to purchase an adapter separately. Thank you
Yewy 1200z smart charger
New lower price
Golf Cart Parts and
Golf Cart Accessories
golf Carts Unlimited
Click Charger cord menu to see other popular connector adapters
Note the RXV aka TXT48 plug adapter is now back in stock
Use the ADD-ON button to add an adapter to your charger order - use this button if we are sending an adapter with your charger only
LCD readout gives real time charging information
See the battery pack voltage,
current amperage draw, charging time,
and the quantity of amp hours put back into the pack
Plus a charge status light
Connectors for on board type charger or if you just want an inexpensive charge connection.
$16 - 18.00
36 volts 20 amps or
48 volts 20 amps
Anderson SB50 connector supplied
Add cord adapters to fit
Club Car Crowfoot (2 blade)
Club Car Round (3 pin)
Ezgo D plug for TXT
just $16 each