• How much does a 10AH lithium-ion battery weigh?

    2025-09-30

    The weight of 10AH lithium-ion batteries is usually between 2-4.5 kilograms, and the specific value is affected by factors such as battery voltage, type, brand, and manufacturing process. The following is an analysis of the weight of 10AH lithium-ion batteries under different voltages and types:Weight of 10AH lithium-i...

  • What is the approximate range of a 10AH electric bicycle

    2025-09-29

    The range of a 10AH electric bicycle is usually between 25-50 kilometers, and the specific value is affected by factors such as battery voltage, motor power, road conditions, driving habits, load capacity, and environmental temperature.Ideal conditions: Under windless, flat road conditions, with a load capacity of no m...

  • 222025-05

    EU imposes voltage and capacity restrictions on electric bicycle batteries

    1、 EU Core Regulation: 48V Voltage Cap and Capacity Durability RequirementsVoltage Classification Standard (EN 50604-1)Class A: DC voltage 60V (covering the vast majority of electric bicycle batteries).Class B:60V< DC voltage 1500V (applicable to high-performance electric motorcycles or special vehicles).Mandatory requirement: The EU standard for electric assisted bicycles (EPAC/EN 15194) specifies that the battery voltage must not exceed 48VDC, and the power must gradually decrease until power is cut off when the speed reaches 25km/h.Capacity and performance requirementsLight duty vehicle batteries (LMT): They must meet the capacity durability testing requirements of the EU's new battery law (EU 2023/1542) to ensure stable battery life throughout their lifespan.Test items: including vibration impact, thermal cycling, overcharge protection, etc., simulating extreme usage scenarios.2、 Differentiated regulations amo

  • 212025-05

    Comparison of Range between 36V20AH and 48V20AH Electric Bicycle Batteries

    1、 Theoretical endurance calculationThe core indicator of range is the energy stored in the battery (watt hours, Wh), calculated as follows:Energy (Wh)=Voltage (V) Capacity (Ah)36V20Ah battery: 36V 20Ah= 720Wh48V20Ah battery: 48V 20Ah= 960WhTheoretical endurance difference:48V battery has higher energy than 36V battery; 33.3%, under identical usage conditions (such as motor efficiency, vehicle weight, road conditions, etc.), the 48V20Ah battery has a longer range, with a theoretical difference of about 33%.2、 Factors affecting actual battery lifeThe actual battery life is affected by multiple variables, and the advantages of 48V batteries may be further amplified or reduced:Motor Efficiency48V system: usually matched with higher power motors (such as 500W-1000W), with higher efficiency during high-speed cruising (about 85% -90%).36V system: The motor power is relatively low (such as 250W-350W), and the efficiency is s

  • 202025-05

    Structure and composition of electric bicycle power battery

    1、 Battery type and chemical compositionElectric bicycle power batteries are mainly divided into three categories, each with its own chemical characteristics and application scenarios:Lead acid batteryElectrode material: Lead and its oxides as positive and negative electrodes, sulfuric acid solution as electrolyte.Features: Low cost, mature technology, but low energy density (short battery life), heavy weight, gradually replaced by lithium batteries.Lithium ion battery (mainstream choice)Positive electrode material:Lithium iron phosphate (LiFePO ₄): High safety, ignition point up to 800 ℃, long cycle life, low cost (0.6 yuan/Wh).Ternary materials (such as lithium nickel cobalt manganese oxide): high energy density, longer range, but higher cost (0.8 yuan/Wh).Negative electrode material: graphite or graphite like carbon material, providing lithium ion insertion/extraction channels.Electrolyte: Organic solvents containing li

  • 182025-05

    What is the difference between 36V and 48V (equivalent ampere hours) electric vehicle batteries

    Electric vehicle batteries, 36V and 48V (equivalent ampere hour AH), 48V has a larger capacity, higher range, and stronger power than 36V. At the same time, 48V has a higher cost and larger size than 36V.1、 Differences in Physical Structure and CostComposition of battery cells36V battery: consisting of three 12V cells connected in series, compact in size, suitable for small car frames.48V battery: consisting of four 12V battery cells connected in series, the weight and volume increase by about 30%, requiring a larger installation space.Cost comparisonMaterial cost: Due to the large number of battery cells, the cost of 48V batteries is 20% -30% higher.Maintenance cost: The replacement cost of 48V batteries is 30% -40% higher, and professional equipment is required to test the consistency of battery cells.2、 Performance comparisonPower and speedAcceleration performance: The 48V battery has higher power output, accelerating 1

  • 172025-05

    Application of Cobalt Element in Power Batteries

    1、 Basic characteristics of cobalt elementCobalt (Co) is a silver white ferromagnetic metal with the following key characteristics:Physical properties: high hardness, high tensile strength, melting point of 1495 ℃, density of 8.9g/cm ³, and high temperature stability. Chemical properties: Stable at room temperature, but prone to react with oxygen, sulfur, etc. at high temperatures to form cobalt oxide (CoO) or cobalt trioxide (Co∝ O ₄). Electronic properties: Common valences are+2 and+3, and Co ³ ⁺ plays a role in stabilizing the crystal structure of battery cathode materials.2、 The core role of cobalt in power batteriesCobalt is a key component of lithium-ion battery cathode materials, especially playing an irreplaceable role in the following aspects:Stable crystal structure: Cobalt ions (Co ³ ⁺) occupy specific positions in the layered structure to prevent Li/Ni mixing and ensure smooth migration of lithium ions during c