Car battery: Difference between revisions
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Depending on individual specs, these batteries must be charged at 13.2-14.4V. |
Depending on individual specs, these batteries must be charged at 13.2-14.4V. |
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Car batteries are comprised of different types of cells, but the XO will preferably need the deep cycle battery type, for reasons outlined below. |
Car batteries are comprised of different types of cells, but the XO will preferably need the deep cycle battery (DCB) type, for reasons outlined below. |
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== Deep Cycle Batteries == |
== Deep Cycle Batteries == |
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===Properties of batteries=== |
===Properties of batteries=== |
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* Cold Cranking Amps (CCA) - amps that the battery can produce at 0°C |
* Cold Cranking Amps (CCA) - amps that the battery can produce at 0°C |
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* Reserve Capacity (RC) - minutes that the battery can deliver 25A, voltage > 10.5V |
* Reserve Capacity (RC) - minutes that the battery can deliver 25A, voltage > 10.5V |
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For |
For DCBs, RC is 2-3 times greater than car batteries, while CCA is about 0.5-0.75 of car batteries. While car batteries are not designed to be completely discharged, DCBs should withstand hundreds of discharge/recharge cycles. |
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== Launch Countries == |
== Launch Countries == |
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These are the launch countries; places where the XO's will be deployed first. We need to find information about the availability of |
These are the launch countries; places where the XO's will be deployed first. We need to find information about the availability of DCBs in these areas. |
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As the OLPC organisation deals with these countries primarily at a government level, we need to uncover local knowledge regarding sources of batteries, specifically regarding the availability of |
As the OLPC organisation deals with these countries primarily at a government level, we need to uncover local knowledge regarding sources of batteries, specifically regarding the availability of DCBs that are light enough for two children to carry. If you can help out in this area, please get in touch with [[User:Shenki | Joel]] or [[User:RafaelOrtiz | Rafael]] |
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* Brazil (especially rural areas) |
* Brazil (especially rural areas) |
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== Vendors == |
== Vendors == |
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''This section should contain different specifications for |
''This section should contain different specifications for DCBs and also availability in the different countries.'' |
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=== Argentina === |
=== Argentina === |
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Revision as of 16:38, 5 May 2007
A car battery is a lead-acid battery that provides a nominal 12-volt (actually 12.6V) potential difference by serially connecting six cells that each produce about 2 to 2.1V each. (This actually agrees with the XO voltage needings - what do you mean by this sentence? Shenki)
Depending on individual specs, these batteries must be charged at 13.2-14.4V.
Car batteries are comprised of different types of cells, but the XO will preferably need the deep cycle battery (DCB) type, for reasons outlined below.
Deep Cycle Batteries
DCB's are designed to provide a steady amount of current over a long period of time; they achieve this by using thicker plates than typical car batteries. DCBs are found in boats, golf carts, and solar power systems.
Properties of batteries
- Cold Cranking Amps (CCA) - amps that the battery can produce at 0°C
- Reserve Capacity (RC) - minutes that the battery can deliver 25A, voltage > 10.5V
For DCBs, RC is 2-3 times greater than car batteries, while CCA is about 0.5-0.75 of car batteries. While car batteries are not designed to be completely discharged, DCBs should withstand hundreds of discharge/recharge cycles.
Launch Countries
These are the launch countries; places where the XO's will be deployed first. We need to find information about the availability of DCBs in these areas.
As the OLPC organisation deals with these countries primarily at a government level, we need to uncover local knowledge regarding sources of batteries, specifically regarding the availability of DCBs that are light enough for two children to carry. If you can help out in this area, please get in touch with Joel or Rafael
- Brazil (especially rural areas)
- Uruguay (especially rural areas)
- Argentina (especially rural areas)
- Libya
- Nigeria
- Ethiopia
- Pakistan
- Rwanda
Vendors
This section should contain different specifications for DCBs and also availability in the different countries.
Argentina
- Acumuladores Arizona SRL
- DIBA de Alvarado
- EnerSystem
- GIAFA S.R.L.
- L&R Ingenieria
- La Inesina Solar
Brasil
- Grupo Multi
- Comercial Mackey
- Cyloau Representações Comerciais
- Industria De Baterias Raiom Ltda.
- Enerbrax Acumuladores Ltda
- S.T.A.
Ethiopia
Libya
Nigeria
- SunEnergy Technologies
- Rubitec Nigeria Limited
- Greenpower Overseas Limited
- Naija Solar Systems
- Union Autoparts Manufacturing Company Limited
- AVRS Group (West Africa)
- Borodo& Co. Limited
- ComNet Technologies Limited
- Dahiru Solar Technical Services
- Darodaz Limited
- DIKUS INDUSTRIES LIMITED
- Harvest Solar
- Jusan Nig. Ltd
- New World Energy Limited
- Prince Power Technology Construction (PRINCEPOWER)
- Sabadel Solar System (Nig) Ltd
- Siman Engineering Limited
- Solarmate Engineering Limited
- Swillas Engineering Limited
- Yuccan Nigeria Limited
Pakistan
- Alternate Power Solutions
- Jasco Private Limited
- A Modern Dev. Est. - HITEC
- Al-Ahmer Enterprises
- AL-Hassan Engineering & Construction Pvt. Ltd
- Atlas Battery Limited
- DEWYNE TRADE INTERNATIONAL
- Grace Accumulators
- INDUSTRIAL TECHNOLOGIES
- Infotech Co.
- NTERWORLD TRADING CORPORATION
- Javedan Resources Corporation
- MESEC
- Pak China Trade Impex
- Powertech
- Project Procurement International
- Shacho Electronics
- Siemens Pakistan Engineering Company Limited, BU Solar
- Solar East
- Solargy Enterprises (Pvt) Ltd
- Stabac Electronics Co.
- Trillium Pakistan (Pvt) Limited
- Zakaria & Zakaria
- Zeeshan Electronics