How to change batteries in A Eveready FAB4DCM

1 Answer. If it is the yellow floating lantern you have to remove the black plastic stub on the underside of the reflector using needlenose pliers to wiggle and slightly pull until it releases and the bulb will come out. This worked great! Eveready should have this as one of their FAQs.Jan. 6, 2011

How do I change the bulb of the 6V Eveready Lantern? - Fixya

Drop a couple of drops of WD 40 on the bulb retaining ring. Let site overnight and in the morning it will easily unscrew. Note: be sure you use only a couple of drops as you don't want to get it on the reflective lense

The switch in the lantern is a press fit switch so you will destroy it when you remove it. Remove the lense and retainer ring. Remove the battery. With a pair of pliers, preferably channel lock water pump pliers crush the switch into small piece and discard. Trail Tech makes the exact water resistant switch model 040-ls-b and you can get it at Amazon or on eBay . The switch runs around $6.25 + $4.00 shipping

this kind of machine they need a traction battery

Printed on the side or embossed on the bottom of the cell.

The AE-1 uses one 6V battery, either a silver-oxide Eveready 544 (or equivalent) or an alkaline-manganese Eveready 537 (or equivalent).

If you need a manual, you can download one from
http://butkus.org/chinon/canon/canon_ae-1/canon_ae-1.htm

If it is the yellow floating lantern you have to remove the black plastic stub on the underside of the reflector using needlenose pliers to wiggle and slightly pull until it releases and the bulb will come out.

The XG-A uses two 1.5v alkaline-manganese (Eveready A-76 or equivalent) or 1.55v silver-oxide (Eveready EPX-76/S-76 or equivalent) batteries.

Do not use 1.35v mercury batteries (Eveready EPX-675 or equivalent), which have a similar shape.

For up to 1000 hours of operation, use Panasonic
LR-44, Ray-O-Vac RW-82, Union Carbide (Eveready) A-76, or equivalent battery types.
For up to 2500 hours of operation, use Mallory 10L14 or D357, Union Carbide (Eveready) 357, Panasonic WL-14, Toshiba G-13, Ray-O-Vac RW-42, or equivalent battery types.
1. Remove slide cover. Place calculator face down.
2. Using a small Phillips screwdriver, remove screws from back case.
3. Pull off back case.
4. Remove discharged batteries.
Caution: Avoid contact with other calculator
components while changing batteries.
5. Install new batteries positive side up, as shown on diagram inside case.
6. Replace back case, and then replace screws.
7. Press ' ! !.
Battery Information
The BA Real Estate calculator cannot hold data in
memory when the batteries are removed or become discharged.

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https://www.reliable-store.com/products/jaguar-xj6-1986-1994-workshop-service-repair-manual