Will these batteries work with the stock Sport Cub S2 charger?

I don't know what type of charger you have but the battery connection point (MCX) is the same as a standard e-flight battery for this plane. Seller says its a (micro jst) but my charger says its a (mcx). May I suggest buying a multiple port type battery charger (ac/dc) which costs around 30 dollars or so. It will ensure hours of flying fun without having to stop and charge batteries. That is if you purchase more batteries.

Can I use this battery with sport cup S2?

I use these batteries on my sport cub s2 and they work great. They are bigger than the ones that come with the RTF model but still fit nicely in the same location. Just add Velcro to stick this to the plane.

This is a replacement of the eflb5001s25um?

No, it's a replacement for the smaller battery, with smaller connector fu ultra micros: It replaces the eflb1501s25 but it's slightly wider - I had to cut the battery carrier on my blade nanoCPX to make it fit, but it works awesome.

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4pcs 250mAh 1S LiPo Battery 3.7V 30C Blade Inductrix Battery Micro JST 1.25 Connector for Kingkong Tiny 6 Tiny Whoop FPV Racing Drone

Product ID: 673318408

Details

Battery capacity
250 Milliamp
Battery cell composition
Lithium
Brand
Crazepony
Number of batteries
4 Lithium
Recommended uses for product
Drone

⚡30C high discharge rate

📏Compact 55x11x5mm size

🔋250mAh high capacity

Description

🚀 Elevate your micro drone game with power that lasts and fits like a glove!

PERFECT FIT PRECISION - Custom-built for Blade Inductrix and compatible with top micro FPV drones.
RAPID DISCHARGE BOOST - 30C rating ensures consistent, high-current output for aggressive maneuvers.
FEATHERWEIGHT CHAMPION - At just 6.6g, it keeps your drone nimble without sacrificing power.
DURABILITY MEETS SAFETY - Ultra-micro high current design resists wear and maintains voltage stability.
POWER PACKED PERFORMANCE - 250mAh capacity delivers longer, punchier flights for your Tiny Whoop.

This 4-pack of 250mAh 1S LiPo batteries features a 30C discharge rate and compact 55x11x5mm dimensions, designed specifically for Blade Inductrix and similar Tiny Whoop FPV drones. Weighing only 6.6g each, these batteries provide enhanced flight times and reliable power delivery, ensuring durable performance for both brushed and brushless micro drones.

Specifications

Amperage	250 Amps
Antenna Location	Drone
Asin	B09GKDZ5YX
Battery Capacity	250 Milliamp Hours
Battery Cell Type	Lithium Polymer
Battery Weight	37 Grams
Brand Name	Crazepony
Item Dimensions	45 x 25 x 15 millimetres
Item Weight	0.23 Ounces
Manufacturer	Crazepony
Model Name	LiPo Battery
Number Of Batteries	4 Lithium Polymer batteries required. (included)
Reusability	Rechargeable
Unit Count	4.0 count
Voltage	3.7 Volts

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