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Now is a good time to talk about batteries and chargers. OpenROV 2.7 is designed to use size 26650 (26.5mm × 65.4mm) Lithium batteries.

Our recommended batteries and chargers can be purchased from our webstore but are dropped shipped and will arrive separately from your OpenROV kit.

Please use caution when dealing with Lithium batteries as they can be very dangerous. We strongly encourage you to read this safety bulletin from Batteryspace.

It is important to charge your batteries correctly. If you are using our recommended batteries and charger from TrustFire (pictured), it MUST BE SET TO 3.0V.

Go ahead and start charging your batteries so they will be ready for you when the build is complete.