Custom Rechargeable D Battery Manufacturer in China
D-cell batteries are a common battery size, measuring 33.2 mm in diameter and 61.5 mm in length. They typically have a nominal voltage of 1.5V and weigh an average of 160-180 grams each. Their large capacity allows them to deliver high power instantaneously, making them ideal for devices requiring long-term, high-power operation. They are also known as “flashlight batteries” due to their long-standing use in large, power-hungry flashlights.
VTCBATT offers high-quality rechargeable D-cell batteries in various capacities. Custom USB-C charging cables are also available for convenient, on-the-go charging and battery health. Our rechargeable D-cell batteries are free of toxic heavy metals such as Hg, Cd, and Pb, ensuring efficient recycling and environmental protection.
Rechargeable D Battery Model
Pros of VTCBATT Rechargeable D Batteries
VTCBATT D cell batteries rechargeable 10,000-12,000mAh are higher than AA( 2,000-3,000mAh) and C(5000-8,000mAh), a good choice for home use and power hungry devices. In addition, the same device can have up to twice the run time vs. C-cells, and 4x the run time vs. AA’s.
Rechargeable D-cell configuration (non-adapter required) provides maximum output power, sustaining high current delivery to the power-hungry devices. In addition, the flat discharge curve of NiMH D-cell batteries guarantees constant transmitter performance up to the end of the application.
Li-ion D-cell batteries are applicable in temperatures from -20°C to 60°C and NiMH models from -4°C to 50°C, exceeding the cold tolerance of conventional batteries.
Stronger than AA / C type battery adapter solutions, this mount is ideal for use in vibration-heavy environments such as in-vehicle devices.
At 500 incidental cycles, the D-cell cost is only 1 ⁄ 1038 of the disposable battery.
Meanwhile, the 1 D-cell battery waste is the same as 3-4 AA batteries – 90% less waste.
In addition, the energy density of the lithium-ion D-cell batteries is much higher (200-265 Wh/kg) compared to Ni-MH (60-120Wh/kg).
Our flagship products come with built-in battery level indicators and protection against overcharge, which is seldom seen on AA/C batteries.
Personalised editions can also charge via USB-C, which means no extra charger is needed, and a full battery in only 2-3 hours.
What's the function of Physicochemical Laboratory Battery for Raw Materials Test
Physicochemical laboratory are designed for testing various battery raw materials, including separators,electrolytes,liquids and casings.Their main purpose is to test the materials’ stability,reliability,consistency and durablity,which form the fundation of rechargeable batteries.Besides regular tests, our laboratory can also conduct specific research tests according to customer’s requirement for rechargeable batteries.
Various Uses Of Rechargeable D Batteries
Mobile entertainment, mobile DVD, portable digital camera, Bluetooth headset (especially outdoor high power Bluetooth)-type sound law enforcement instruments, POS terminals, credit card reader, commercial power, etc.
Open the power lithium battery core of the RC model airplane/helicopter, airsoft gun, vehicle, such as UAV, racing car, drone, and power lithium batteries in the battery pack of electric vehicles, electric bicycle, etc.
Robotics and Automation: Mobile power source for AGV(Automated Guided Vehicle), industry robot, survey instrument;
Medical equipment: Power source for portable medical equipment(such as for blood glucose meters and patient monitoring devices).
Internet of Things New EnergySolar system, solar garden lighting, outdoor IoT devices, emergency system backup, emergency lighting, and safety equipment.
Specialty EquipmentMilitary equipment (weatherproof power suppliers), Power monitoring equipment for trains equipment in special environments for polar regions or high temperatures.
It depends on exactly what kind.
Non-rechargeable Type:
Alkaline or zinc-carbon materials: The battery is a single cell with a voltage of 1.5V, commonly used in high-power flashlights, radios, and other devices. They are not very environmentally friendly, as they are full of heavy metals.
Lisoci2 Battery materials: Normally named as ER34615M D size lithium thionyl chloride battery.Its nominal voltage is 3.6V and its applicable for wireless sensors,tracking modules,alarms and utility meters.
Rechargeable:
Ni-MH battery standard voltage is 1.2V, with capacities ranging from 3500mAh to 16000mAh. It features no memory effect, long service life, and is environmentally friendly. They can be applied to industrial equipment and emergency lighting.
Lithium batteries: they bear a nominal voltage of 1.5V to 3.7V, USB-C can be recharged, and they are suitable for wide temperatures(-20℃-60℃).
Nickel-cadmium batteries: Generally have a nominal voltage of 1.2V, are overchargeable, over-discharge without damage, have a capacity that is usually not particularly large, generally less than 5000mAh, making them small in size. They also contain the poisonous metal cadmium.
Types of D-shaped batteries. Special rechargeable D-shaped batteries are also used in wearable devices. They are ultra-thin, high discharge rate, and long cycle life (>1000times).
Battery memory effect is the phenomenon whereby a battery that is recharged before being completely discharged appears to “remember” the previous charge level and reduces its capacity to memorise the level that it was recharged and apparently “forgets” that it has remaining charge. If you charge a battery to half and pull it down to zero over and over again, then the battery will “think” it has half the capacity. Even if you charge it up completely, it will be half discharged.
The memory effect depends upon the battery type: nickel-cadmium batteries show a greater memory effect; nickel-metal hydride batteries have a lesser memory effect; lithium-ion batteries have no memory effect; while lead-acid batteries exhibit none (though partial discharges can reduce the overall service life of a lead-acid battery).
In practical circuit design, how can to avoid or weaken the memory effect?
The use of nickel-cadmium and nickel-metal hydride batteries requires deep discharging the battery regularly (i.e., not to fully discharge and recharge back just a little bit). For lithium batteries, there’s no reason to deeply discharge on purpose—they can be damaged by deep discharges anyway.
Choose the appropriate charger based on the specific materials.
Nickel-metal hydride (NiMH) D-cell batteries require a dedicated NiMH charger, though some universal chargers support them (they must be labeled D-cell compatible). Lithium-ion (Li-ion) D-cell batteries must be used with a Li-ion charger and cannot be mixed with NiMH batteries.
D-cell batteries are larger (34mm diameter, 61mm length), so you need a charger with a dedicated charging slot or an adapter (some products support multiple sizes, including AA, AAA, C, and D).
Additionally, there are several functional requirements: a separate charging slot to prevent overcharging and undercharging caused by series charging. Intelligent management features, including overcharge protection, temperature monitoring, and trickle charge, ensure the safety of large-capacity batteries.
Recommended chargers include EBL C/D chargers and BONAI universal chargers, which support NiMH D-cell batteries and can be mixed with other sizes.
Capacity Labeling and Specifications
Rechargeable D-cell battery packaging typically clearly indicates the battery capacity, voltage, and number of charge cycles, making it easier for users to select models suitable for high-power devices.
Ordinary disposable battery packaging emphasizes voltage rather than capacity or cycle life.
Packaging Types
Rechargeable D-cell batteries are divided into industrial packaging and retail packaging. Industrial packaging is typically solid-color plastic and primarily used for bulk supply; retail packaging focuses on design and may include a charger.
Disposable D-cell batteries generally only come in retail packaging and do not require charging accessories.
Safety Design
Rechargeable D-cell batteries (especially nickel-metal hydride/nickel-cadmium types) must be packaged to prevent short circuits and terminal damage. They typically use shock-resistant outer packaging and ensure terminal insulation.
The transport packaging of lithium-ion D-cell batteries must comply with international regulations such as UN3091, including short-circuit isolation, a sturdy outer box, and a hazardous materials label.
Accessory Packaging
Rechargeable D-cell batteries are often sold in multiple-cell packs with dedicated chargers, while disposable batteries are typically sold in single-cell or small-volume packs.
Shipping and Storage Regulations
Rechargeable D batteries (especially lithium batteries) are subject to stricter shipping regulations, such as restrictions on charge states and prohibitions on air transport of fully charged batteries. The shipping packaging requirements for ordinary batteries are relatively simple and generally do not require special hazardous materials labeling.
Yes, but there are some caveats:
The nominal voltage of rechargeable NiMH D-cell batteries is 1.2V, lower than the 1.5V of alkaline batteries. If your device is voltage-sensitive, you’ll need to test for compatibility. Some lithium-ion D-cell batteries can output a stable 1.5V using a voltage regulator.
High-quality NiMH D-cell batteries can have capacities up to 4500mAh, while alkaline D-cell batteries typically have capacities of 12000-15000mAh. While their single-charge life is shorter, they can be cycled over 500 times, resulting in lower long-term costs.
We recommend choosing NiMH or lithium batteries. NiMH D-cell batteries support 2000 cycles and have no memory effect, making them suitable for high-use devices (such as emergency lights). They require a smart charger to prevent overcharging.
Lithium D-cell batteries have a built-in USB-C charging port and support fast charging (full charge in 2 hours). They are 30% lighter than NiMH batteries and are suitable for portable devices. However, you need to confirm that your device supports the lithium battery discharge profile.
