2.5mm Pitch Battery Connector Female Gold-plated 4P
Highlight
Compact 2.5 mm pitch 4‑position SMT battery female socket, gold‑plated phosphor‑bronze contacts, low contact resistance, anti‑oxidation, up to 5000 mating cycles. Optimized for lithium‑ion battery modules delivering power + temperature/signal sensing on compact PCB space. RoHS‑compliant, supports standard SMT reflow assembly, available for OEM/ODM customization.
Product Description
| Item |
Specification |
| Pitch |
2.5 mm |
| Pin Count |
4P (Female) |
| Mounting Style |
SMT Surface Mount |
| Mating Cycles |
5000 cycles (Min.) |
| Mating Direction |
Vertical mating |
| Contact Retention Force |
≥ 500 g per pin |
| Polarization |
Optional keyed anti-mismating |
Material & Electrical Characteristics
| Item |
Specification |
| Housing Material |
High‑temp thermoplastic UL94‑V0 |
| Contact Material |
Phosphor Bronze |
| Contact Plating |
Gold‑plated contact area |
| Rated Current |
3 A per pin (continuous) |
| Rated Voltage |
30 V DC |
| Contact Resistance |
≤ 30 mΩ |
| Insulation Resistance |
≥ 1000 MΩ |
| Withstand Voltage |
250 V AC / 1 min |
Environment & Soldering Guide
| Item |
Specification |
| Operating Temperature |
‑30 ℃ ~ +80 ℃ |
| SMT Reflow Profile |
Peak temp 260 ℃ ±5 ℃, dwell ≤ 5 s |
| Hand Soldering |
≤ 350 ℃, soldering time ≤ 3 s |
| Compliance |
RoHS |


Product Features
- 2.5 mm center‑to‑center pitch, 4‑pin female receptacle, SMT PCB mounting
- Phosphor‑bronze spring contacts with gold plating: low contact resistance, anti‑corrosion & anti‑oxidation
- Spring‑beam contact structure: stable contact force, resists vibration & shock
- UL94‑V0 flame‑retardant insulator, excellent reflow soldering heat resistance
- Up to 5000 mating cycles for frequent plug‑unplug scenarios
- RoHS compliant; customizable pin height, gold‑plating thickness & polarization key option
- Space‑saving footprint, well‑suited for compact battery pack PCB layout




Product Advantage
- Gold‑plated contact reliability: Avoid oxidation drift; contact resistance remains stable even after thousands of insertions, reducing power loss & hot‑spot risk vs tin‑plated alternatives.
- Optimized spring‑beam geometry: Consistent spring pressure against battery male terminal; good anti‑vibration performance for portable & moving equipment, no intermittent power drop.
- Manufacturing‑friendly: Strict dimensional consistency for high‑volume SMT mass production; low defective soldering rate.
- Design flexibility: Support modification on contact height, gold thickness, and add polarization key; quick sample turnaround for project validation.
- Cost‑competitive: Factory direct supply, equivalent performance to famous brand counterparts with better total cost of ownership for mass‑volume orders.
Application
- Portable consumer electronics: handheld terminals, POS equipment, scanners
- Lithium‑ion battery packs: multi‑cell battery modules with temperature‑sense signal
- Smart home hardware: smart locks, portable medical devices
- Industrial portable instruments, data loggers
- Robot auxiliary power, drone peripheral battery units
- Wearable & small battery‑powered IoT devices

Customization Options
- Pin count logic: 4P for simultaneous power delivery + battery temperature/balance signal; select 2P only for pure power without sensing signal.
- Gold‑plating option: Choose gold‑plated version if device works in humid / salt‑spray environment or requires frequent mating; tin‑plated alternative available for cost‑sensitive static‑connect projects.
- PCB layout note: Reserve enough keep‑out space around connector housing; strictly follow our recommended reflow temperature curve to prevent plastic deformation.
- Mating pair check: Verify male battery contact dimension, height, and pitch before finalizing design; mixed‑brand mating may cause incomplete engagement.
- Current derating: Derate 30 % current under high‑temperature (> 60 ℃) working environment for long‑term reliability.

FAQ
Q: Can I get some samples?
A: Yes, some samples are free.
Q: Who do I contact if I have a technical question?
A: We have an experienced team of technical sales representatives in-house. They are ready to answer any questions you may have and assist you in your project.
Q: If defective products occur when receiving the goods, how to deal with it?
1. It's impossible for the goods not to be good as before shipping; we have many checks to confirm the products are no problem. Then, if happened, we will bear the responsibility.
2. First: why this will happen, how happen, and how to control it in the future; a table will come out for your checking.
3. Second: discuss the solutions.
4. Finally: we will bear all the fees if returning and changing the goods or the loss caused.
Q: How do you guarantee my goods right?
A: The order will be arranged exactly as requested; we will doubly check the packing and qty before delivering. Also, we will take photos of your goods if required or necessary.
Q: Which payment can be accepted:
1. The payment terms can be flexiable depend on the quantity and products.
2. Usually, for new customers, we prefer 100% T/T before shipping or 30%T/T advance before shipping.