Bateriadalah produk yang biasa digunakan dalam keluarga kami. Pelbagai jenis bateri mempunyai kegunaan yang berbeza. Hari ini saya akan memberi anda pengenalan terperinci mengenai ukuran dan tujuan bateri No. 1, No. 2, No. 3, No. 4, No. 5, No. 6 dan No. 7. Saya harap dapat menolong anda. Pilih bateri yang anda perlukan dengan betul.
1. Bateri No. 1: juga dikenali sebagai bateri jenis D (bateri besar / LR20 / AM1), diameter Ñ „34.2; tinggi 61.5mm, bateri jenis D yang banyak digunakan boleh didapati untuk bekalan kuasa DC awam, tentera, dan khas, bateri D (kepala rata) standard.
2. No. 2bateri: also known as Type C bateri (No. 2 bateri/LR14/AM2), diameter ф26.2; height 50.0mm, in the past, regular quartz wall clocks and metal movements used No. 2 batteries. Some analog multimeters also use AA batteries. There are also small flashlights, small radios, etc. Has now gradually withdrawn from the market.
3. No. 3 bateri: The size is diameter: 25.8mm, height: 51mm. AAA bateri is rarely used. A bit thicker than our ordinary AA bateri. , Generally the bateri core in the bateri pack, which can be seen on power tools, cameras and imported equipment
4.  No. 4 bateri: standard A (flat head) bateri height 49.0±0.5mm, diameter 16.8±0.2mm, usually used as the bateri core in the bateri pack, nickel-cadmium, nickel-metal hydride batteries for old cameras.
5. No.5bateri: also known as AA bateri (No. 5 bateri/LR6/AM3), diameter ф14.5; height 50.5mm, commonly used in digital cameras, electric toys, etc. AA batteries are well known to everyone, digital cameras, electric toys, AA batteries, standard AA (flat head) batteries.
6. No. 6 bateri: Standard F (flat head) bateri has a height of 89.0±0.5mm and a diameter of 32.3±0.2mm. It is generally used as a bateri cell.
7. No. 7 bateri: also known as AAA bateri (No. 7 bateri/LR03/AM4), diameter ф10.5; height 44.5mm, mostly used in remote control and other occasions with limited volume and low power consumption. The 7th bateri is more common, and most of the previous MP3s used AAA batteries, that is, the 7th bateri.