Battery Connector 2.0mm vs 2.5mm Pitch: Which Do You Need?
Time:2024-09-17
Views:22
The short answer: the 2.5mm pitch is the industry standard for battery leads, and 2.0mm is the compact option for when the board is too tight for 2.5. The connector type is the same — a small two-pin (or sometimes three-pin) wire-to-board plug with a latch — the only thing that changes is how far apart the pins sit.
2.5mm — the standard battery lead. If you‘ve opened up a rechargeable battery pack, an RC battery, a portable speaker or a cordless tool, you‘ve probably seen the 2.5mm connector, because it‘s what most of the industry settled on. It‘s also where JST‘s XH series lives, which is why you‘ll sometimes hear it called an XH connector. It‘s rated for a couple of amps comfortably, takes AWG 28 to 22 wire, and the latch is strong enough to hold but easy enough to unplug. Two pins is the norm — positive and negative — and it‘s everywhere, so it‘s cheap and always in stock.
2.0mm — the compact option. When the 2.5mm pitch is just too wide for the board, the 2.0mm connector is the next step down. This is JST‘s PH series territory. You‘ll see it in smaller battery packs, drones, and anything where the enclosure forces the connector to stay tiny. The trade-off is a slightly lower current rating and a smaller, more delicate terminal — fine for most small battery loads, but not where you‘re pulling real amps. Two pins again for a simple cell connection, occasionally three if there‘s a temperature sensor or a balance lead involved.
How I‘d pick. If you‘re building a standard rechargeable pack and the board has the room, use 2.5mm — it‘s more forgiving to crimp and easier for the end user to plug and unplug. If the pitch won‘t fit or the product has to be genuinely small, drop to 2.0mm and be ready to buy a better crimp tool, because the small terminals are less tolerant of sloppy crimps. One more thing: a 2.0mm and a 2.5mm plug look almost identical at a glance, but they don‘t mate — so mark the harness clearly, or you‘ll frustrate whoever assembles it.
On the sourcing side, both pitches are available as JST-compatible parts, which is where you dodge the premium pricing and long lead times of the branded originals. We stock 2.0mm and 2.5mm battery connectors with matching housings, crimp terminals and pre-crimped leads, and we‘ll match the exact series your design already uses. If you‘re interested, please contact us right away.
Frequently Asked Questions
Are 2.0mm and 2.5mm battery connectors interchangeable?
No. The pitch differs, so the housings and terminals do not mate. You must match the pitch to your battery lead.
What is the standard battery connector pitch?
2.5mm (XH type) is the most common for small rechargeable packs; 2.0mm (PH type) is used where board space is tight.
Can you crimp the battery leads for us?
Yes, we supply 2.0mm and 2.5mm connectors with pre-crimped leads, keyed housings and RoHS-compliant materials.
008613534059456
whatsapp:joy
overseas@hongyian.cn