QH Tech Blog
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Blog covers articles related to energy storage, batteries, solar and more info related to energy. QH tech mainly provides LiFePO4 batteries and household solar energy storage solutions for their clients worldwide.
QH Tech Blog
3M ago
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LiFePO4 Voltage Chart
The voltage chart for Lithium Iron Phosphate (LiFePO4) batteries typically shows the voltage levels at various states of charge (SOC) and states of discharge (SOD). LiFePO4 batteries have a relatively flat voltage curve compared to other lithium-ion battery chemistries. Here is a general voltage chart for a LiFePO4 battery:
100% SOC (Fully Charged): Around 3.2 to 48 volts per cell (3.2V to 3.3V for a single-cell battery).
LiFePO4 Voltage Chart (3.2V,12V,24V & 48V)
LiFePO4 Voltage Chart (3.2V,12V,24V & 48V)
Percentage(SOC)
3.2V
12V
24V
48V
10 ..read more
QH Tech Blog
3M ago
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What Is A Lifepo4 Battery
What are lifepo4 batteries? A LiFePO4 battery, also known as a Lithium Iron Phosphate battery, is a type of rechargeable lithium-ion battery. It uses a cathode material made of lithium iron phosphate (LiFePO4), which is different from the more common lithium cobalt oxide (LiCoO2) cathodes used in standard lithium-ion batteries.
1: LiFePO4 batteries have several advantages, including:
Safety:
LiFePO4 batteries are considered safer than other lithium-ion battery chemistries. They are less prone to overheating and are more stable under high temperatures ..read more
QH Tech Blog
1y ago
1. Energy storage system scheme
1.1 Allocation scheme of the energy storage system
The whole energy storage system adopts a lithium iron phosphate battery as the physical carrier of energy storage, takes 126KW h energy battery cluster as the unit, and forms 505KW h battery energy storage system.
The configuration table of the 500K W h energy storage system is as follows:
order number
project
description
burst mode
rated voltage
(V)
rated capacity (Ah)
Storage of electricity
(kWh)
Implementation method
1
The cell
3.2
105
0.336
A single cell
2
module
2P6S
19.2
210
40 ..read more
QH Tech Blog
1y ago
With the surging price of electricity, more and more people decide to build a household solar energy storage system. We can build a solar energy storage system with an inverter, several powerwall batteries, and rooftop solar panels. Powerwall gives you the ability to store energy for later use and works with or without solar. 48V 100Ah powerwall battery can meet your 5kWh daily consumption, such as the air-conditioning, hair dryer, coffee machine, etc. You can increase the total capacity by connecting no more than 10 pieces of powerwall batteries in parallel.
Compared with a diesel generator ..read more
QH Tech Blog
1y ago
The 24V Lifepo4 Battery Pack is ideal for off-grid household solar energy storage systems. When we install an inverter, a LiFePO4 battery pack, and several rooftop solar panels, a simple off-grid solar system is done. It is a reliable power backup and it works independently of the grid. The 5kWh solar power system can not only save our energy bills but also make lots of benefits to our environment.
If you want to try the off-grid solar system on a small scale, you can start with a 25.6V 200Ah LiFePO4 battery. Let’s check how to assemble a 25.6V 200Ah LiFePO4 battery!
*Note: It is recommended ..read more
QH Tech Blog
1y ago
When selecting the right trolling motor for your new boat or boat upgrade, thrust is one of the most critical specs to consider to ensure that you can propel your boat properly. The proper thrust levels are typically calculated based on your boat’s weight and length. Electric trolling motors can help us avoid spooking fish.
Thrust is measured in pounds (lbs) and refers to how powerful the trolling motor is. Usually, a 68-80 lbs thrust trolling motor needs 24 volts LiFePO4 battery or two 12V batteries. Are you interested in building your LiFePO4 battery? Here is the full process of battery as ..read more
QH Tech Blog
1y ago
LiFePO4 floor cleaning machine is convenient for our daily lives. Floor machines require reliable and long-lasting backup power to ensure the job is complete without interruption. Lithium iron phosphate LiFePO4 batteries have longer life spans and higher energy densities. Compared with lead-acid batteries, LiFePO4 batteries are lightweight and maintenance-free. They are excellent partners for our housework and cleaning projects.
Do you want a durable LiFePO4 battery instead of a lead-acid one? Would you like to DIY your own battery? Here is the full tutorial in the following post.
*Note: It ..read more
QH Tech Blog
1y ago
Do you want to start your RV traveling? A travel trailer is the least expensive way to enjoy a recreational vehicle or RV lifestyle. You can feel free with your travel arrangements. If you want to explore more landscapes, you simply unhook your trailer at the campsite and head out in your car or SUV. Large motor homes can be very clumsy and bulky to drive. That’s the reason why travel trailers are the most popular type of non-motorized RV.
We can use a storage battery to power the applications on the travel trailer. If you put several solar panels on your travel trailer, Nowadays, LiFePO4 ba ..read more
QH Tech Blog
1y ago
If you need a small voltage and capacity of LiFePO4 battery pack, the 12V 50Ah one is worth a try. With no acid in the lithium-ion battery, you’re able to safely mount it in any position. This makes Li-ion batteries perfect for marine, RV, campers, golf carts, travel trailers, and off-road and off-grid applications!
In the following post, we’d love to share you with the full battery pack assembly tutorial of a 12V 50Ah LiFePO4 battery. Do you want to build your own battery? Follow us and finish it step by step.
*Note: It is recommended that you learn some basic knowledge about LiFePO4 batt ..read more
QH Tech Blog
1y ago
Battery recycling
The new energy vehicle industry is developing rapidly, and the demand for power lithium batteries is growing rapidly. The batteries have entered the routine replacement stage, and the power batteries contain a large number of recyclable high-value metals, such as lithium, cobalt, nickel, etc., which can produce great economic benefits after recycling. A large number of waste-power lithium batteries are expected to generate a huge recycling market.
When the number of cycles of a ternary battery is about 2500, the battery capacity decays to 80%, and then its relative capacity ..read more