More safe r20 d cell battery led flashlight

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Payment Type:: T/T

Incoterm:: FOB

Min. Order:: 100 Dozen

Min. Order:: 100 Dozen

Delivery Time:: 30 Days

Transportation:: Ocean

Quantity:

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Basic Info

Place of Origin:	China
Productivity:	100000pcs/month
Supply Ability:	100000pcs/month
Payment Type:	T/T
Incoterm:	FOB
Certificate:	CE/ISO9001/MSDS
Transportation:	Ocean

Product Description

More safe r20 d cell battery led flashlight

1.Basic information:

Product	More safe r20 d cell battery led flashlight
Battery standard	IEC standard
Nominal voltage	1.5 Volts
Open-circuit voltage	1.70 Volts
Closed-circuit voltage	1.52 Volts
Diameter	32.30-34.20MM
Height	59.50-61.50MM
Average weight	82.50 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, Audio appliances etc

2.Packaging details:

Shrink pack	2 PCS	2 PCS
Colorful inner box	24 PCS	12 PCS
Colorful carton	288 PCS	240 PCS
Gross weight	25.50KGS	21.50KGS
Net weight	24.00KGS	20.00KGS
Carton size	430X295X220MM	515X280X145MM
1X20`FCL container	1,000 Cartons	1,200 Cartons

3.Why choose our R20 batteries?

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 R20 batteries and our service is our responsibility.

4.Technical data:

Art. No.	Battery Type	Nominal Voltage (V)	Shelf Life (Month)	Test Conditions	Discharge Time
					IEC Standard(IEC 60085-2:2007)	EVERBRIGHT
1111	R20 D UM-1	1.5	24	20±2°C,3.9ohm, 24h/d, E.P.V. 0.9V	-----	≥300 Min
				20±2°C,10ohm, 4h/d, E.P.V. 0.9V	1080 Min	≥1350 Min

6.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.

Full

Metal Jacket

Metal jacket

Attractive out looking and more safe performance

Plating cap

Compose of metal and plastic not only make battery more attractive but also help battery more leakage proof

7.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)

We promise to provide you with high quality R20 battery as well as high efficiency services.

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Related Keywords

D Cell Battery Led Flashlight , D Cell Battery , R20 Battery

More safe r20 d cell battery led flashlight

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)

2MnO₂(s) + 2 e⁻ + 2NH₄Cl(aq) → Mn₂O₃(s) + 2NH₃(aq) + H₂O(aq) + 2 Cl⁻ [e° ≈ +.5 v]

and the Cl⁻ combines with the Zn²⁺.

Zn(s) + 2MnO₂(s) + 2NH₄Cl(aq) → Mn₂O₃(s) + Zn(NH₃)₂Cl₂ (aq) + H₂O(l)