Wednesday, October 17, 2018

Exciting EV Conversions of Model T and Suzuki Samurai

Model T and
Suzuki Samurai EV Conversion

This Model T was converted to Electric and appeared in the biggest parade in Utah. We started out our company with a primary focus on converting gasoline cars into Electric Vehicles (EV). Even though we’ve gone away from doing the actual converting, it is still a thrill to see a conversion through to completion for our customers. We were also excited by a Suzuki Samurai EV Conversion which one of our customers put together.
We live in an age when it’s easier and sometimes less expensive to buy a new Electric Car than convert a classic car to run on electricity. I started my company after I saw the movie “Who Killed the Electric Car” and was shocked to learn the lengths that General Motors had gone to deprive the average American from being able to drive on an inexpensive, non-polluting fuel. I knew that Electric Cars could become popular again under the right circumstances. Today with car companies like Tesla putting out new EVs full car conversions are less common. That is why I love hearing conversion stories from average car enthusiasts.
We still provide conversion parts like Lithium Batteries, Motors, Chargers, Controllers, Contactors, and many others on our website, Electric Car Parts Ask us a conversion question or tell us about your own EV Conversion experience!

Wednesday, October 10, 2018

MPPT Solar Charge Controller Can Operate in Parallel

12V, 24V, 36V, or 48V 60A MPPT
For Flooded, SLA, AGM, Gel, Lead Acid Battery
and LiFePO4 (Lithium) Battery Packs
Solar Charge Controller
11.2 * 8.1 * 3.6 in. (285 * 205 * 93 mm)
7.9 Lbs. (3.6 Kg)

Our offerings on the solar front have increased dramatically in the last 3 years as we’ve added Inverters, Energy Storage Systems, and today’s featured product Solar Charge Controllers
The 60A MPPT Solar Charge Controller can operate in parallel and uses advanced dual-peak or multi-peak tracking technology. The Lithium Battery gets charged with maximum power in real time. As the Charge Controller user manual says, “This product can keep monitoring the solar panel’s generating power and tracking the highest voltage and current values (VI) in real time, enabling the system to charge the battery in maximum power. It’s designed to be used in off-grid photovoltaic systems to coordinate operation of the solar panel, battery and load, functioning as the core control unit in off-grid photovoltaic systems.”
A Solar Charge Controller regulates the voltage and current coming from the solar panels going to the battery to prevent the battery from overcharging. A Solar Battery Charger is used in solar applications and comes in two types: PWM (Pulse Width Modulation) and MPPT (Maximum Power Point Tracker)
A PWM Solar Charge Controller matches the voltage of the solar panel to the voltage of the battery by pulling down the solar panel’s output voltage.
An MPPT Solar Charge Controller optimizes the match between the solar array (PV panels) and the battery bank. It converts a higher voltage DC output from the solar panels down to the lower voltage needed to charge batteries and convert the extra voltage of the panel into current which increases the output from the solar system.
We are confident that these MPPT Solar Charge Controllers will be just what you need for your Solar System at a reasonable price!

Features of the 60A MPPT Solar Charge Controller:
·        Advanced dual-peak or multi-peak tracking technology.
·        Built-in maximum power point tracking algorithm to improve energy utilization efficiency of photovoltaic systems.
·        Charging efficiency 15%-20% higher than traditional PWM solar charge controllers.
·        Combination of multiple tracking algorithms that can accurately track the optimum working point of the I-V curve in a very short time.
·        MPPT tracking efficiency can be as high as 99.9%
·        Advanced digital power supply technology to raise the circuit energy conversion efficiency to as high as 98%.
·        Different charging program options including those for gel batteries, sealed batteries, open batteries, and customized ones.
·        Current-limiting charging mode. When the solar panel power exceeds a certain level and the charging current is greater than the rated current, the solar charge controller automatically reduces charging power and brings the charging current to the rated level.
·        Instantaneous large current startup of capacitive loads.
·        Automatic recognition of battery voltage.
·        LED fault indicators and a liquid crystal display screen to display abnormality information and help users quickly identify system faults.
·        Historical data storage function to store data for up to a year.
·        LCD screen on the controller to enable users to check device operating data and statuses and modify controller parameters.
·        Standard Modbus protocol to meet the communication needs of various occasions.
·        Electrically-isolated communications to assure the user about usage.
·        Parallel operation supported by certain parts of the solar charge controller.
·        Built-in mechanism for over-temperature protection. When the temperature exceeds the set value, the charging current will decline in linear proportion with temperature, therefore slowing down the rise of controller temperature and avoiding controller damage from high temperatures.
·        External battery voltage sampling function to prevent line loss from affecting external battery voltage sampling and to ensure greater control parameter preciseness.
·        Temperature compensation function to automatically adjust charging and discharging parameters to extend the battery service life.
·        Battery over-temperature protection function for when the external battery temperature exceeds the set value. Charging and discharging will be shut off to protect components from being damaged.
·        TVS lightning protection.

Technical Specifications of the 12V, 24V, 36V, or 48V Solar Charge Controller:
·        Battery Voltage/Power: 12V/800W, 24V/1600W, 36V/2400W, or 48V/3200W
·        Max Solar Input Voltage: 150V
·        Rated Charge Current: 60A
·        Rated Load Current: 20A
·        IP Rating: IP32
·        Conversion Efficiency: <98%
·        MPPT Tracking Efficiency: >99%
·        Working Temperature: -31F~113F (-35C~+45C)

Wednesday, September 26, 2018

Energy Storage System Provides Peak Shaving with an AC Power Conversion System PCS

Up to 1MWh 500V~800V Battery
Energy Storage System
For Peak Shaving Applications
3 Year Factory Warranty

Peak Shaving is becoming more and more popular as a means of conserving energy. This Energy Storage System is charged off the utility grid in off peak hours at very low electrical cost and then discharged during peak periods to dramatically reduce demand charges.
Peak Shaving works because you’re providing energy that doesn’t get billed by the power company. You’re not reducing usage; you’re altering the source of the energy. Here are 3 ways you can achieve Peak Shaving:
1.   Use an alternative localized power source during peak times of day.
2.   Improve your energy efficiency.
3.   Utilize solar energy battery storage.
The 1MWh Storage System makes use of a localized power source by the use of a Battery Pack, a Battery Management System (BMS), and an AC Power Conversion System (PCS).
Ask us about the components of a Power Storage System because we can tailor-make a Peak Shaving System in any Kilowatt range above 250 kW per module.

Features of the 1MWh Energy Storage System Battery Pack:
Cell Nominal Voltage
Cell Charge Cut-off Voltage
Cell Discharge Cut-off Voltage
Cell Capacity
Cell Count in Each Module
Nominal Voltage of Module
Charge Module End Voltage
Discharge Module End Voltage
Operating Temperature
-4F ~ 140F
(-20C ~ 60C)
Depth of Discharge
Charge C-rate
Discharge C-rate
Cycle Life
Cell Internal Resistance
0.4 Milliohms
Cell Dimension
1.7 * 6.8 * 7.5 in
(44 * 174 * 190 mm)
Module Dimension
10.8 * 31.9 * 9.8 in
(275 * 810 * 250 mm)
Cell Weight
7.0 Lbs. / 3.2 Kg
Module Weight
132.3 Lbs. / 60 Kg

Features of the Battery Management System (BMS):
Supply Voltage
Cell Temperature
-4F ~ 140F (-20C ~ 60C)
Cell Charge Over Voltage
Cell Charge Under Voltage
Cell Discharge Cut-off Voltage
Maximum Charging Current
Maximum Discharging Current

Features of the Power Conversion System (PCS):
Continuous kW Rating
250 kW
AC Grid Voltage
DC Voltage Range
400~850 V
Output Frequency
50/60 Hz
IP Rating
47.2 * 85.0 * 31.5 in
(1200 * 2000 * 800 mm)
2976 Lbs. / 1350 Kg

Wednesday, September 19, 2018

High Efficiency, Long Lifespan, Lithium Battery Charger

TCCH 3300 Watts / 3.3kW
72V, 84V, 96V, 144V, 312V, or 540V
Lithium Battery Charger

The TCCH Lithium Battery Chargers come in 3 wattages: 1800W, 3300W, and 6600W. Today we are highlighting the 3300 Watt Lithium Ion Battery Charger.
This 3.3kW Battery Charger has 6 different voltages for different amounts of LiFePO4 cells:
Nominal Voltage
LiFePO4 Cells

The 3.3kW Lithium Charger User Manual gives a good summary of the advantages of the charger when it states: “This product has the advantages of not only high efficiency, small size, high stability, long lifespan, but also features high protection grade, high reliability, and complete protection function, etc. It’s definitely an ideal charging power supply for Electric Vehicles (EV).”
The TCCH Battery Charger is available as a standard charger without CANbus (Switch Signal) or with a CANbus, BMS interface. Prices include free shipping, so compare the price of this unit with other similar chargers and see how competitive our prices really are!

Features of the 72V-540V TCCH Charger:
§  Will automatically adjust to any AC input voltage between 90V and 265V
§  The AC input amperage is 16A
§  Advanced high frequency switching design with 93% efficiency
§  Input Frequency 45-65 Hz
§  Fully sealed enclosure provides protection from harsh environments.
§  Temperature Compensated
§  Automatic internal temperature safety shut-off system (shuts down when temps reach 194°F / 90°C.)
§  Charging Control: CAN bus or ENABLE

Wednesday, September 12, 2018

Simple and Reliable Battery Management System

Simple BMS
Battery Management System
For Lithium LiFePO4 Battery Packs in Series

We are excited to announce our brand new Battery Management System (BMS) called the Simple Lithium BMS. We got a large shipment in to our office of many sizes and voltages. The 12V 100A 4S BMS is pictured above with a wiring diagram to show connections.

In addition to the BMS System with a link above we also provide a BMS for Solar BMS applications. They come in 12V or 48V voltages and are for 4 or 16 Lithium LiFePO4 Battery Packs in series.
The top quality (A-level) Protective Circuit Board IC has Power Balancing Function and the circuit is simple and reliable.
We know that the Simple Lithium Ion BMS will replace many existing Battery Management Systems because of reasonable price and easy operation. Compare the Simple BMS to any other BMS and see for yourself why we love this new product!

Features for the 12V 100A 4S BMS:
  • Top Quality (A-level) Protective Circuit IC
  • Strong Load Ability, Constant Discharge Current 100A, High Voltage Resistance, Low Inner Resistance Power Mosfet
  • IC itself has power balancing function. The circuit is simple and reliable.
  • Typical voltage detection for each cell. Each battery will be prevented from over-charging or over-discharging. Over current and short circuit protection function is very reliable. Long-time short-circuit of the load won’t affect the PCB and the battery. Temperature protection during charging and discharging.
  • Extremely Low Power Consumption. The consumption of the whole device is less than 50uA.
  • The PCB uses high anti-corrosion, high water resistance, and high impedance ESD conformal coating

Specifications for the 4S BMS:

External Load
Short Circuit
<10 milliohms
-22 to 176
(-30 to 80)

Frequently Asked Questions about the BMS/PCB

1, Which current PCB should I use?
Take a 13S 48V pack as an example: Which PCB you should use depends on the power of your motor or the current limitation of your controller. Below 350W, you can use 16A. Below 500W, you can use 18A, Below 800W, you can use 35A, Below 1KW, you can use 60A. Above 1200W, the same. If you are not sure, please contact us.

2, Can I use a bigger size of PCB than is indicated?
Suppose you need 60A PCB but you chose 80A, that will work.
80A allows for a higher current. A bit higher price is the only drawback.
But if you choose 50A, it will be too small. So you can use a higher spec but not a lower one than it should be.

3, What kind of charger should I choose?
A Lithium Battery must be charged by a Lithium Battery Charger. You can’t charge it with a lead acid battery charger because the lead acid battery charger might damage the MOS pipe of the PCB.

4, if I have a PCB, do I need any balancers?
Yes if you add QNBBM balancers, that will be perfect. 
The Main function of the PCB is to prevent batteries from over-charging over-discharging, over-heating etc.
With balancers added, the batteries lifespan will be longer and the capacity will get fully used.

5, How do I judge if my PCB is broken or not?
If you’d like to judge if the PCB is fine or not, please use a multi-meter and see if the voltage of each cell is close to one other or not. When the voltage difference is 1V, the battery will have this kind of performance: the driving distance will be short, it will be cut off when started, the charging time will be very short. Under such a situation, a battery is defective. When the PCB is broken, the battery can’t be discharged. When you measure the battery voltage, it will be normal.