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Introduction |
| If you have an old or newly acquired Maxxum 5000/7000 with battery corrosion, this guide will show you how to clean it. | | | === ***GUIDE NOTES*** === | * ***THIS GUIDE ONLY COVERS THE AAA COVER, ASDUE TO THE PROCEDURE IS UNIQUEUNIQUE PROCEURE.***
** ***''AA covers do not need to be disassembled. The corrosion, and can be cleaned without disassemblyquickly.''***
* ***The existing nickel plating will be stainedNOTE: YOU WILL LOSE SOME OF THE NICKEL COATING -- NO WAY AROUND IT! Do not skip proper treatment to avoid this; residual alkaline can cause further problems or stripped. There is no way around this.*** The cover can be cleaned without neutralization first this but ***''cannot be avoided. Improper treatment may cause unrepairablepermanent damage!''***
* ***''IF THE ALKALINE SITS TOO LONG, IT CAN DAMAGE THE COVER BEYOND REPAIR, ESPECIALLY THE THIN SCREW PLATE CONTACTS.'' Ifespecially the screw plate tabs are corroded, they may need to be lightly sandedcontact strips.*** | | === ***Battery replacement options*** === | If your original cover is unrepairable, there are a few Lithium replacement options: | | If your original cover is unrepairable, the recommended fix is to switch to the 2CR5 cover (BH-70T), if possible. ***However, the required battery is not readily available in most retail stores. It may be possible to find these at SOME CVS locations or Best Buy stores (possibly local "regional" chains), but retail availability today is poor.*** | | | * ***2CR5:*** ***Primarily used in film cameras, early digital and binoculars.*** ***''You will need to buy these online in most cases, or a camera shop with regular stock.'' Plan ahead, poor general retail availability.*** | | ** ***''Some Best Buys may sell them, but they are not cheap! Some drug stores sell them, but do not rely on this.''*** | | * ***CR123: Used in high draw devices (gun scopes, binoculars, distance calculators, etc). These are effectively the cells used in the 2CR5 without the plastic shell. Good availability, but potentially pricey at retail.*** | | * ***CR2: Another common high draw battery (gun scopes, distance calculator and more). Easy to find, but less common then the CR123. ''While these are used in later Minolta cameras (Maxxum 5/7/9/STsi/QTsi), these can be ignored for the 5000/7000.''*** | | ***The retail availability was somewhat maintained for a long time due to common use in gun scopes, binoculars and distance calculators (as well as film/early digital cameras), so you could buy them from places like Cabella's or Bass Pro Shops for a long time. However, the CR123 later became the "standard" battery, which made them even harder to find outside of camera stores and the internet.*** | | | ***''You will most likely need to stock up, check nearby camera stores or 3D print a 2CR5 adapter which takes the CR123 batteries.''*** | | | ``''*Some manufacturers use the term "CR123A, DL123 (Duracell),or SF123A**, other terms may be used.''`` | | | ``''**(Surefire, flashlight manufacturer). MAY NEED TO REMOVE WASHER UNDER NEGATIVE TAB UNDER THE BATTERY LABEL).''`` | | | === NOT RECOMMENDED === | | * ''1.5V primary Lithium (AA/AAA) cells. Poor economics, and less runtime than a specialized cell (CR123/2CR5). ***THESE BATTERIES ARE NOT ECONOMICAL UNLESS A 10 PACK IS PURCHASED. These only have two advantages: no leaks and availability.***'' | | * ''1.5V primary Lithium. ***Will not leak and easy to find, poor economics and mediocre runtime compared to 2x 3V cells (CR123/CR2) or a 2CR5.***'' | | ** ''(AA/BH-70L)/(AAA/BH-70S).'' |
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