URGENEX Lipo Battery 850mAh 7.4V(2 x 3.7V) RC Boat Battery with SM-4P Plug UDI001 RC Boats Batteries Compatible with RC Boat UDI008

Great value and worked great

Works as expected. Not a long battery life but knew that going in.

My Venom boat is now 5 years old, and this year, the boat couldn't come anywhere close to top speed. After about 30 seconds, the low battery signal would begin to beep. I hoped it was just time to replace the batteries, and not yet time to replace the boat.Well these new batteries arrived today, and after charging them up, the boat runs great! Quick as can be. If you can trust the rating, these 850 mAh batteries should hold over 40% more charge than the original 600 mAh batteries. Can't tell yet how many years I'll get out of them, but today I'm a happy camper.

These batteries were purchased so I could run some RC boats longer. These batteries are super well wrapped and they seem to hold charge over a course of a few days just fine. Performance was great as expected and it significantly increased my usage from the original 360mah battery that came with my boat. Just remember that if you have a self-righting hull, the increased weight of these batteries will make it lose that ability. Check your measurements before purchasing! Otherwise these are great replacement and spare batteries.

Runs our little rc boats great and a long time.

Works great with my kid’s speed boat. It extends the playtime from 10 to almost 45 minutes.

Battery was fully charged but weak, and only lasted about 2 minutes, leaving boat stranded in the middle of the lake.

What a great price and the battery seem to have alittle longer run time than the stock Batterys that came with the boat all around great product