| External Batery R20 with Top Selling 1.Basic information: | Product | External Batery R20 with Top Selling | | Battery standard | IEC standard | | Nominal voltage | 1.5 Volts | | Open-circuit voltage | 1.69 Volts | | Closed-circuit voltage | 1.52 Volts | | Diameter | 32.30-34.20 MM | | Height | 59.50-61.50 MM | | Average weight | 76.50 Grams | | Shelf life | 24 Months | | Main battery material | Manganese dioxide, Zinc, Acetylene black, Grophite powder, Carbon rod, Plating cap, Tinplate bottom etc | | Application | Flashlight, Torch, Radio, Water heater,Electronic product etc | 2.Detailed pictures below for your reference: 3.Why choose our battery? | Quality | With over 18 years' experience in battery business, we guarantee each single piece of battery is reliable in quality. | | Service | Efficient and excellent service is the basic requirement you can expect from us. | | Responsibility | Your satisfaction with our batteries and our service is our responsibility. | 4. Types of Dry Cell Batteries Technical data: | Art. No. | Battery Type | Nominal Voltage
(V) | Shelf Life (Month) | Test Conditions | Discharge Time | | IEC Standard(IEC 60085-2:2007) | PERFECELL | | 21C1 | R20 D UM-1 | 1.5 | 24 | 20±2°C,3.9Ω, 24h/d, E.P.V. 0.9V | ----- | ≥350 Min | | 20±2°C,10Ω, 4h/d, E.P.V. 0.9V | 1080 Min | ≥1500 Min | 5.Size D Super Battery For Eletronic Product: 6.Quality control & performance: 1)Our battery is made of high quality raw materials which have been inspected strictly before usage. 2)Our workers and technicians closely watched each step in the battery production processes, strictly executed the quality management system to insure each battery up to IEC standard. 3)Our battery has the characteristics of high capacity, long-durability, super leak-proof, good performance of continuous discharge, long time of intermittent discharge, and it has low decline rate of capacity. 7.Internal structure: 8.Chemical reaction: In a zinc–manganese dioxide dry battery, the zinc can is the negative terminal through which the electric current flows into the device. The zinc is oxidised according to the following half-equation. Zn(s) → Zn2+(aq) + 2 e− [E° = -0.7626 volts] The positive terminal is a mixture of chemicals – usually a mixture of manganese dioxide powder, carbon and an electrolyte to increase the electrical conductivity. A carbon electrode rod also is placed inside the middle of the battery, connecting the two metal-capped ends of opposite charge and serving as the positive terminal.The reaction is as follows: 2MnO2(s) + 2 e− + 2NH4Cl(aq) → Mn2O3(s) + 2NH3(aq) + H2O(aq) + 2 Cl− [e° ≈ +.5 v] and the Cl− combines with the Zn2+. There are other possible side-reactions, but the overall reaction in a zinc–manganese dioxide battery can be represented as: Zn(s) + 2MnO2(s) + 2NH4Cl(aq) → Mn2O3(s) + Zn(NH3)2Cl2 (aq) + H2O(l) 9.Product procedure: | 1 | Zinc can | The zinc can is the negative terminal and anode material | | 2 | Inserting the separator | The separator and the bottom paper are inserted to prevent battery short-circuit between the positive and the negative electrode. | | 3 | Filling cathode material | The mixture of manganese dioxide, electrolyte and others are filled as the cathode material | | 4 | Inserting carbon rod | The carbon rod for collecting electricity is inserted into the middle of the battery | | 5 | Sealing | The plastic gasket for sealing is fitted to prevent leakage and water evaporation | | 6 | Fitting tinplate bottom and PVC jacket | The tinplate bottom is placed on the bottom of zinc can and PVC jacket is shrinked | | 7 | Finished product | The batteries are packed by shrink after inspecting the voltage, current and appearance | 10.Packaging details: | Shrink pack | 2 PCS | | Inner Box | 24 PCS | | Colorful carton | 288 PCS | | Gross weight | 24.00KGS | | Net weight | 23.00KGS | | Measurement | 420x285X210MM | | 1X20’FCL container | 1,050 Cartons | 11.important notice: 1)Insert batteries properly. 2)Keep batteries away from infants. 3)Remember to switch off. 4)Dry batteries are not rechargeable.
5)Remove used-up batteries soon.
12.Posters:
We promise to provide you with high quality battery as well as high efficiency services.
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