Yes, completely, and the performance is better.
Can supercapacitor batteries replace lead-acid batteries and traditional lithium batteries?
Yes, completely, and the performance is better.
What is the difference between green tech's supercapacitor battery and ordinary battery?
The raw materials and internal structure of green tech supercapacitor battery are different with ordinary battery.
And it is with very long life, high power, fast charge and discharge, safe and reliable.
The use method of supercapacitor battery is very similar to lithium battery and the operation is simple and convenient.
You can use it according to the method of lithium battery.
Our products inclued 2 series: EDLC and Graphene Supercapacitor Battery.
EDLC can be discharged to 0 Volt, while graphene supercapacitor battery cannot.
Is there BMS in a supercapacitor battery module?
Yes, each GTCAP supercapacitor battery module integrates an intelligent BMS to protect the cell super capacitor batteries and the system.
No, please just using one battery type per system.
Can green tech modules be used in parallel?
Some of the modules designed can be used in parallel, and it must be operated according to the operation manual.
This is an extra option already installed and operational on some large electric vehicle systems with parallel battery systems. It gives the reassurance that in the event of a single point fault the remaining portion of the battery pack will continue to provide energy. It is enabled through extra control and switching wiring and also involves an additional level of management control supervision which Green Tech have developed and can support.
The fundamental safety rule is that lithium batteries at different states of charge should not be connected together. Electrical isolation of batteries at different states of charge must be maintained until all modules in the pack (including the new replacement) are fully charged. For help to achieve this it is strongly advisable to contact the Applications Engineering team for support. Only certified technicians are allowed to modify power cabling and installations.
The important factors are to match.
● the battery pack voltage and system minimum and maximum voltages.
● the battery capacity in Amp hours needs to be matched with nominal current consumption and run-time.
● the system peak discharge current must be carefully matched to battery specification and if necessary a larger capacity pack chosen to prevent overheating.
● the total weight and dimensions also need to balance with these overall factors.
Is cooling required, on supercapacitor battery packs?
This really depends on the environment and the typical energy usage profile. A small capacity pack which is being “worked hard” will generate more heat than larger capacity pack. (Ask Green Tech for advice!)
What is the correct orientation when a supercapacitor battery is fitted?
Any orientation is possible as there is no free electrolyte inside, however we recommend the terminals are upright, particularly when sideways mounted. (no upside down orientation with terminals on the bottom).
Balancing during charge. Why is it important?
Due to the way the supercapacitor batteries are constructed from many internal cell blocks it is very important that during charging these cell blocks are allowed to balance (i.e. reach the same charge level), otherwise the total battery output performance would be limited by the cell block which is lowest charge state.
This balancing should be performed as often as possible to keep the overall capacity optimum and ensure that all super capacitor batteries within a pack are contributing equally to the total output.
Calibrating State of charge (SOC), what way does it work? How often do I need to fully charge and discharge to reset SOC?
Can the charger be connected to supercapacitor batteries permanently?
Only the chargers that have a float phase can be connected permanently to supercapacitor batteries. When batteries are fully charged the charger will remain in floating mode.
Can the supercapacitor batteries be deep discharged? How can they be recovered if this happens?
Do supercapacitor batteries self-discharge when not in use?
How do you charge the supercapacitor batteries correctly?
Ideally supercapacitor batteries should be charged in 3 stages:
What is a BMS? Is it necessary?
A Battery Management System is necessary for control and protection during discharge and charging. The BMS provides CAN bus or RS485 communication of battery status ‘state of charge’ and alarms etc. It may also be used without CAN bus interface with just basic analog inputs and outputs for simpler systems.
What CAN BUS protocols do you support?
Green Tech uses only CAN or RS485 open protocol. We can support customers in interfacing & adapting to different protocols they are using.
How does the BMS know which module is which?
Each module is programmed with individual ID number e.g. 001 and the BMS can address directly with each module on a shared communication channel.