BETAFPV 8pcs BT2.0 300mAh 1S Battery 3.8V 75C Lipo with 1.0mm Banana Connector for Tiny Whoop Brushless Whoop Drone Like Cetus Kit Air65 Brushless Drone

Tons of flights and still holding charge. Bt2.0 is a stiff connection, be careful not to rip the wire off your board.

They work great 👍

Good batteries. They hold charge well and give decent flight time for my tiny whoop. Good price and I’ve put a good amount of cycles on them with no noticeable decline in power. They seem to be pretty durable.

Value: 5 Flight Time: 4 Connector: 4 (REALLY TIGHT) Weight: 5 Overall These are good packs. They hold a charge and get about 2 minutes of flight on a hummingbird V3. That said, the benefits of the connector are really lost on me when compared to HV batteries. I think they're a good value, and it's nice they can ship quickly, but I didn't notice they aren't HV packs and am a little disappointed in the lower flight times despite the claims BT2.0 will magically extend times 30 seconds. Tattua 280's get the same flight time on a ph2 for me. BUT, these definitely stay peppy all the way through those 2 minutes!

Great for your basic 300mah 1s batteries but do yourself a favor and buy the 300mah lava HV lipos. Charging to 4.35v gives a substantial increase of flight time.

the 2 batteries that came with the cletus were never really enough in the first place, and especially once I started flying more regularly and they got worn out I wanted enough to be able to rotate through without having to wait around to fly. Did the job and fit perfect, as should be expected. Was debating getting the 450 mah version and modifying the celtus slightly to carry it. Longer flight time would've been nice but with the small size of the drone performance definitely would've been compromised.

These are the older model of BetaFPV's BT2.0 batteries. They were shipped from a re-seller in Spain called "Gavimosa Consultoria, Sociedad Limitada" despite ordering from the BetaFPV store. They arrived in a puffed out condition and were stored at the wrong voltage. I've received a few things from this re-seller and they've generally not been good. Proceed at your own risk. Flight times were barely a minute on a 65mm whoop. I think these are part of some old back stock that was improperly cared for and is now being sold off for cheap. Key points: Mislabelled on the box (not Li-HV!) Poor battery life -- clearly not stored well. You're lucky if you get 1 min of flight time on a 65mm whoop. Poor quality and not worth it, even if they may seem cheap -- Well, you get what you pay for and they're cheap for a reason!

Works amazing! So much powah and punch! The old PH connector batteries would sag to 2.9 or 3 volt before landing. I quickly found out that if I ran these to that level they wouldn't recover to 3.7-3.8 after landing. When using these on tiny whoops (mine is a beta65s w 7x16 motors) set your low voltage warnings to 3.4V and land quickly after it hits. That way they should be right around your storage voltage of 3.7 to 3.8V a few minutes after you unplug. I can tell these will last a LOT longer with proper care and less voltage sag.

En modo normal y velocidad lenta, superan los 5 minutos de autonomía en un Betafpv Cetus. 40 minutos de vuelo garantizados.

Lipo eccezionale per air 65

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Good

Batterie superbe ! Vraiment au top les mecs !