ProTek RC 1S High Capacity Sanwa M17 LiPo Transmitter Battery (3.7V/5500mAh)

Description

This is the ProTek R/C High Capacity 1S Transmitter Battery with 5500mAh of capacity, for use with the Sanwa M17 Surface Transmitter. This light weight Li-Poly transmitter battery will help to dramatically extend the run time that your transmitter can offer, which is great for long days at the field!

How should the battery be inserted into the transmitter?
A suitable foam should be used to pad the battery in the transmitter battery compartment to help hold the battery in place and prevent it from moving around. Place a piece similar in size to the battery into the transmitter battery housing under the battery, and then while pressing lightly on the battery, slide the cover over the battery.

Specifications:

• Voltage: 3.7V
• Capacity:5500mah
• Chemistry: Lithium Polymer
• Connector:JR
• Charge Rate:1C
• Dimension (LxWxH): 79×46.5x12mm
• Weight: 94g

IMPORTANT:
1) DO NOTleave the battery in your model when charging
2) DO NOTleave unattended when charging
3) ALWAYSbalance charge the battery
4) ALWAYS use a LiPo charging bag
5) YOU MUSTuse a Li-Poly specific charger to charge the pack (NiMH or NiCD only chargers WILL NOT WORK!)
6) YOU MUSTnot over discharge the Li-Poly battery pack
7) READ & UNDERSTANDthe instructions carefully before operating this battery
NOTE: When using high energy Li-Polymer Batteries, please do not over-discharge or over-charge batteries as this will result in over heated batteries. Discharging capacity can’t exceed 80% of the max capacity of the pack after full charging to ensure a good cycle performance. It is recommended to fully charge a brand new battery before using and only discharge the battery 50% for first 5 cycles. Always monitor race time and/or set a low voltage warning on ESC (End voltage cannot be lower than 3.2v per cell). Do not use the battery that has too low a voltage.
Do not expose batteries to sunshine or store/charge batteries at the temperature above 35°C or in a closed car. The high temperature environment could cause damage to the pack or make it burst. If the battery becomes hot while fast charging, high current discharging or racing, do not charge the battery until it has cooled completely. Wait about 20 mins, then inspect prior to recharging.

NOTE:For a more lightweight 1S option, see the 3000mAh MT-44 Transmitter Battery (it fits) – PTK-5197

This product was added to our catalog on January 28, 2019

Larry George Verified Owner Thursday, Dec 24 2020 (about 4 years ago) ProTek RC 1S High Capacity Sanwa M17 LiPo Transmitter Battery (3.7V/5500mAh) Stays charged the whole race day and then some! Wish it had the micro usb on the side to recharge, like the stock battery does on the m17. 9 customers found this review helpful. James Anderson Verified Owner Thursday, Jul 6 2023 (about 2 years ago) ProTek RC 1S High Capacity Sanwa M17 LiPo Transmitter Battery (3.7V/5500mAh) This battery will fit in the Sanwa MT-5 as well as the M17. Just a note in case folks were wondering. 4 customers found this review helpful. BLT Verified Owner Monday, Jun 16 2025 (3 months ago) ProTek RC 1S High Capacity Sanwa M17 LiPo Transmitter Battery (3.7V/5500mAh) This is a good battery for the M17 radio, lasts about five days without needing recharged unlike the junk lipo that comes stock in the m17. But I’m glad I bought it around a year ago, because now it’s way overpriced like all other Protek lipos. RGX Racing Verified Owner Monday, Jun 16 2025 (3 months ago) ProTek RC 1S High Capacity Sanwa M17 LiPo Transmitter Battery (3.7V/5500mAh) for my one hour and 45 min mains, i will use these, for the “Just in Case Scenario!! nothing more Annoying! hearing a Low Battery Alarm! on a radio when driving!! lol for sure a Great Pit Box Accessory for your Radio. View all reviews