Quick Details
Place of Origin: GUA,Guangdong, China (Mainland)
Brand Name: EVERBRIGHT
Model Number: R20
Battery Type: Zn/MnO2
Nominal Voltage: 1.5V
Size: D
Nominal Capacity: >300MIN,3.9 Ohm continuous discharge, E.P.V. 0.9V
Short Circuit Current: >5A
Jacket: Metal
Type: R20 Size D UM1
Brand: EVERBRIGHT
Continuous discharge: >300Min
PCS shrinked: 2 PCS
PCS per box: 24 PCS
PCS per carton: 288 PCS
Port of delivery: Jiangmen Port,China
Performance:
1)Our R20 batteriy 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 R20 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.
Chemical reaction:
In a zinc¡§Cmanganese 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) ¡¨² Zn2+(aq) + 2 e− [E¡ã = -0.7626 volts]
The positive terminal is a mixture of chemicals ¡§C 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) ¡¨² Mn2O3(s) + 2NH3(aq) + H2O(aq) + 2 Cl− [e¡ã ¡Ö +.5 v]
and the Cl− combines with the Zn2+.
There are other possible side-reactions, but the overall reaction in a zinc¡§Cmanganese dioxide battery can be represented as:
Zn(s) + 2MnO2(s) + 2NH4Cl(aq) ¡¨² Mn2O3(s) + Zn(NH3)2Cl2 (aq) + H2O(l)
We promise to provide you with high quality R20 battery as well as high efficiency services.
1) 2 PCS Shrink Pack,24 PCS/Colorful Box,288 PCS/Colorful Carton,1,000 Cartons/20'FCL; 2) 2 PCS Shrink Pack,12 PCS/Colorful Box,240 PCS/Colorful Carton,1,200 Cartons/20'FCL;
Supplier: Soda ash
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sodium sulphite
diethylene glycol (deg)
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menthol crystal
base oil 150n, bs 150, 600n
rpo (rubber process oil)
lioh (lithium hydroxide)
hco (hydrogenated castor oil)
12 hsa (hydroxy stearic acid)
additive for lubricant and grease
aromatic chemicals
pvp povidone iodine
pvp povidone k30
h2o2 (hydrogen peroxide)
Services: Exporting of industrial chemicals, petrochemical and ethylene glycol series
Buyer: Soda ash
sodium sulphate anhydrous
sodium sulphite
diethylene glycol (deg)
fumed silica
menthol crystal
base oil 150n, bs 150, 600n
rpo (rubber process oil)
lioh (lithium hydroxide)
hco (hydrogenated castor oil)
12 hsa (hydroxy stearic acid)
additive for lubricant and grease
aromatic chemicals
pvp povidone iodine
pvp povidone k30
h2o2 (hydrogen peroxide)
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