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For a Capcom CPS2 B-board, there are two distinct ways to address its suicide-battery issue: replace the onboard 3.6 V 1/2 AA lithium cell, or have the board modified with a compatible Phoenix Edition so its operation no longer depends on the battery. Battery replacement preserves the battery-dependent arrangement but leaves future battery maintenance; a Phoenix modification removes that dependence only on supported games and board revisions. The available procedures are CPS2-specific, so identify the hardware family and PCB revision before buying parts or attempting a repair.
What does “desuiciding” a Capcom arcade board mean?
In this context, “desuiciding” means addressing a battery-dependent failure risk on a CPS2 arcade board. The term is often used loosely for two different repairs: installing a fresh battery or modifying the board so it no longer relies on the battery. Those are not equivalent interventions.
CPS2 repair guides identify the battery as a 3.6 V 1/2 AA lithium cell. Phoenix Edition, by contrast, refers to modified game code intended to let a compatible board run without depending on that battery. The CPS2 programming guide also makes clear that board revision matters and that its procedures vary by revision. Do not assume that instructions for one CPS2 board—or a CPS2 battery specification—apply to every Capcom arcade system.
Which Capcom boards does this guidance cover?
The detailed battery-replacement and programming references available here concern Capcom CPS2 B-boards. They do not establish a universal battery type or repair method for CPS1, CPS Dash, or all other Capcom hardware.
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Before ordering a cell or asking for a modification, identify the board family and the PCB revision. Check the board’s labels and markings, and compare them with reliable documentation for that exact hardware. A repair guide can illustrate a useful method, but it is not proof that every revision has identical parts, layout, or procedure. The CPS2 programming manual reference explicitly calls for identifying the revision before proceeding: CPS2 programming manual, page 10.
If you cannot confidently identify the board, pause rather than applying the CPS2 procedure by resemblance. The wrong battery, polarity, or modification for a board can turn a preservation job into a more serious repair.
Should you replace the battery or install a Phoenix modification?
Choose battery replacement if you want to retain the original battery-dependent arrangement and can safely perform the soldering, or have a repairer do it. Consider a Phoenix modification if you want to eliminate battery dependence and the exact game and board revision are supported. Neither route is universally best; the board’s condition, revision, preservation priorities, and access to a competent repairer all matter.
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1Clear out junk files and repair common Windows errors2Scan for outdated or missing drivers - takes under a minute3Repair Windows errors before they cause bigger problems| Option | What changes | Best fit | Important trade-off |
|---|---|---|---|
| Replace the battery | A new cell is installed in place of the old one; the board remains battery-dependent. | An owner preserving the original arrangement who can arrange competent soldering. | Future battery maintenance is still required. The replacement must fit and be installed with correct polarity. |
| Phoenix/desuicide modification | Supported game code or board operation is modified so it no longer depends on the battery. | An owner seeking battery independence, where the specific game and revision are supported. | Compatibility and method depend on the board revision. Modified code may not match an owner’s preservation priorities. |
The battery route is a replacement, not a permanent removal of the underlying dependency. Phoenix is not simply another battery type: it changes how a supported board operates. For a preservation-minded owner, the relevant question is whether maintaining the original battery-based setup or removing the battery dependency better suits the board’s intended use.
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What battery does a CPS2 B-board use?
The referenced CPS2 replacement walkthroughs specify a 3.6 V 1/2 AA lithium battery. Before purchasing, verify the cell currently installed and the board’s terminal arrangement, physical dimensions, leads, and polarity. The phrase “3.6 V 1/2 AA” alone does not guarantee that a particular cell will fit or connect correctly.
An axial-lead version may be a relevant product category, but confirm the installed configuration rather than ordering from a generic search result. The replacement guides describe desoldering the old cell and fitting a new one while observing polarity; they do not establish that every board revision uses an identical installation. See the CPS2 battery replacement guide and CPS2 battery-change walkthrough for the procedures they cover.
How do you replace the CPS2 battery?
Battery replacement involves opening the case, locating the battery, removing the old cell’s soldered connections, and installing a compatible replacement with the correct polarity. The published walkthroughs assume basic soldering ability; if that is not within your skill set, use a repairer rather than learning on a valuable board.
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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware match- Confirm the board. Verify that it is a CPS2 B-board and identify its revision. Do not proceed based only on the cabinet or game title.
- Inspect before buying. With the board safely accessible, confirm the installed cell’s voltage and size category, physical dimensions, terminal or lead style, and polarity. Compare these details with the replacement you intend to use.
- Gather suitable tools and a documented procedure. The cited guides mention a security Torx driver, soldering iron, and desoldering braid or pump. Use a guide that matches the board layout and your skill level; the references are walkthroughs, not a guarantee of identical steps on every revision.
- Open the case and locate the battery. Follow the relevant guide’s disassembly directions and note the original cell’s orientation before removing anything. If markings or wiring do not match the guide, stop and verify rather than improvising.
- Remove the old cell carefully. The walkthroughs describe desoldering the battery connections. Avoid forcing a lead or damaging the board while clearing solder. If you cannot free the connections cleanly, hand the job to a repairer.
- Install the replacement with polarity observed. Match the new cell’s orientation to the board’s markings and the verified original arrangement. A battery that fits physically but is connected with the wrong polarity is not a correct replacement.
- Reassemble and verify the result. Use the board-specific guide to complete reassembly and check operation. If the board still does not behave as expected, do not assume that another battery swap will fix it; seek diagnosis for the exact board and revision.
One important limitation: these sources do not provide a single procedure guaranteed safe for every revision, nor do they establish a universal sequence for changing the battery while the board is powered. Do not infer such a method from a generic walkthrough. If you are unsure about the appropriate procedure for the exact board, ask a CPS2 repair specialist before desoldering.
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What does a Phoenix modification involve?
A Phoenix Edition modification changes supported game code or board operation so the board can run without relying on the battery. This is a modification rather than a replacement-cell service, and compatibility is specific: the CPS2 programming guide says steps vary with board revision, so do not assume that a method for one board applies to another.
Before authorizing the work, ask the repairer to confirm compatibility with the exact game and PCB revision, explain what code or board changes are involved, and clarify whether the original configuration can be restored. That last point matters if retaining original behavior is a priority. The available references do not establish a universal reversibility guarantee, so get a board-specific answer rather than assuming the modification can be undone.
City Game describes Phoenix Edition work for certain CPS2 and other arcade boards and states a standard 90-day warranty on its repair page. That is a provider-specific claim, not a general warranty or guarantee of current availability. Confirm the scope and terms directly with any service provider. For background, see City Game’s repair information and the CPS Codex Phoenix overview.
What should you check before starting either repair?
Make the decision only after confirming the hardware and your priorities. Use this checklist before buying parts or sending the board away:
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- Hardware family: Is the board confirmed as CPS2, rather than another Capcom system?
- Exact revision: Have you identified the B-board revision, and does the proposed method match it?
- Battery details: If replacing the cell, have you checked its voltage, dimensions, lead or terminal arrangement, and polarity against the installed battery and board?
- Skill and equipment: Are you competent with desoldering and soldering on a PCB, and do you have the appropriate tools? If not, use a qualified repairer.
- Preservation goal: Do you prefer to keep the battery-dependent arrangement, or prioritize removing that dependency on a supported board?
- Service scope: If commissioning a modification, has the provider confirmed support for your exact game and revision, the work to be performed, warranty terms, and any effect on reversibility?
A repairer should be able to discuss board revision and compatibility before beginning. If the proposed answer treats all Capcom arcade boards as identical, ask for a board-specific explanation.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What can go wrong, and when should you stop?
The most avoidable problems come from applying a procedure to the wrong board, buying a cell based only on a short description, or attempting soldering without adequate skill. A nominally correct voltage does not by itself confirm that the cell’s physical form, terminals, and polarity are suitable. Likewise, a Phoenix procedure that works for one revision is not evidence of compatibility with another.
Stop if you cannot identify the board or revision, if the installed battery does not match the guide you are following, if polarity is unclear, or if a soldered connection will not release cleanly. Do not force a component or improvise a wiring arrangement. Have a repair specialist inspect the board and determine the correct procedure.
Also distinguish a battery issue from a general board fault. The cited materials establish repair paths for battery dependence; they do not show that every non-working CPS2 board can be fixed by changing the cell or installing Phoenix code. If the board remains faulty after a properly completed, revision-appropriate repair, it needs diagnosis rather than repeated speculative changes.
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How should you choose a repairer?
Ask whether the shop handles CPS2 boards and whether it will verify the exact revision before work. For a battery change, ask what cell configuration it plans to install and how it will confirm polarity. For Phoenix work, request confirmation of game and revision compatibility, a plain-language description of the modification, and written warranty terms.
Do not treat a warranty stated by one provider as a standard for the industry. City Game lists a standard 90-day warranty for the service described on its page, but terms and availability can change and may not apply to other providers or other repairs. A clear answer about the exact board is more useful than a broad claim that a shop can repair all Capcom boards.
Can the same advice be used for every Capcom arcade board?
No. The battery specification and procedures discussed here are supported for CPS2 B-boards only. The available references do not establish the battery type or desuiciding procedure for CPS1, CPS Dash, or every Capcom arcade system, so identify the hardware and consult board-specific documentation before acting.
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Frequently Asked Questions
Can I change a CPS2 battery without soldering?
The referenced replacement walkthroughs describe desoldering the old cell and installing a replacement, so they do not support a no-solder method. If you are trying to avoid soldering, ask a repairer to handle the battery replacement rather than improvising a connection.
Does a Phoenix-modified CPS2 board need another suicide battery?
Phoenix Edition is described as changing supported board operation so it no longer depends on the battery. Confirm that the exact game and PCB revision are supported; the available references do not establish compatibility for every CPS2 board.
Can I use the CPS2 battery instructions on a CPS1 board?
Not on the evidence available here. The cited battery type and procedures concern CPS2 B-boards, and a separate board-specific source is needed before applying any battery specification or repair steps to CPS1.
Is a Phoenix modification reversible?
Reversibility depends on the specific modification and board, and the available sources do not guarantee that it can be undone. Ask the repairer to explain what will be changed and whether restoration is possible before authorizing the work.
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