Sell 2PCS 3.7V Li-ion 502030 Battery 250mAh Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with JST Connector best price

[Battery size]: 5mm * 20mm * 30mm (T * W * L) [Applicable equipment]:portable DVD players, bluetooth devices wireless devices, wearable electronic devices, PDA and digital cameras, GPS, monitoring units, notebook computers, e-books, telematics, tracking devices, sleep management equipment, blood oxygen tracking equipment, pulse monitors, Wi-Fi enabled smart home systems. [Features]: Lithium-ion battery nominal voltage 3.7V, fully charged 3.7V, capacity 80mAh. Built-in Seiko battery protection module to prevent overcharging and short circuit of this battery [Connector type]: Jst pitch 1.25 mm, 2 pins, wire length: 50 mm [Notice]: Check the polarity of the battery against the old battery before replacing it. Red wire connection power supply plus "+", black wire connection power supply negative pole "-". If is reversed, the position of the interchange wire is required.