ProTek RC HV LiPo Hump/Short Receiver Battery Pack (Kyosho/Tekno) (7.6V/2600mAh) (w/Balancer Plug)
About this part
These packs are built with a lexan plastic shell around the outside of the battery, and then covered in blue heat shrink. The lexan shell is designed to protect the battery cells while in the vehicle, for longer life. Note that due to the lexan shell, sometimes the battery may feel soft to the touch on the outside of the battery; this is normal as there is a small air gap between the lexan shell and the battery cells inside.
Specifications:
- Capacity: 2600 mAh
- Case: Lexan shell covered with heat shrink
- Weight: 100 grams (including wire and connector)
- Li-Po cell arrangement: 2S2P
- Nominal voltage: 7.6 Volts
- Discharge capability: 8C continuous (20.8A)
- Dimension (LxWxH): 54x31x31mm
- Connector: JR Style with thick 20AWG Silicone Wire
- Balancer Plug: XH style (Align, E-Flite compatible)
- Recommended Application: Kyosho and Tekno vehicles, 1/10th & 1/8th scale nitro models, Helicopters and Airplanes
IMPORTANT:
1) DO NOT leave the battery in your model when charging
2) DO NOT leave unattended when charging
3) ALWAYS balance charge the battery
4) ALWAYS use a LiPo charging bag
5) YOU MUST use a Li-Poly specific charger to charge the pack (NiMH or NiCD only chargers WILL NOT WORK!)
6) YOU MUST not over discharge the Li-Poly battery pack
7) READ & UNDERSTAND the 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.
CA Residents Prop 65 Warning
WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Details...Reviews4.3 · 3 reviews
I'm using this pack in an Inferno MP10. It fits well enough but put a piece of foam in the battery box to help snug the fit up.
It’s been a great pack so far, holding more than enough juice for a whole day of racing. Fits perfectly in my MP10!
Purchased 2 of these in April 2020. Right out of the box, resistance readings were 96 and 59 mOhms. They fit pretty well in my Tekno NB48 2.0 buggy and had some side-to-side gaps, so I added some adhesive felt pads to the sides and lid of the box to cut down the abrasion. I trimmed away some of the box's plastic near where the battery wires exited the box because it looked like it could pinch the wires. Performance was excellent. My ProTek 170SBL steering servo was extra responsive on the high voltage. Run times were top-notch -- no surprise since normally these only power servos & receiver. But I run strong servos, a MyLaps transponder, plus a LapMonitor transponder, all at the same time, all the time, and my throttle servo is fighting a rubber band failsafe so that's gotta be a slightly higher power draw than the average nitro buggy. In August 2021, a friend wanted to try out nitro buggy but needed some help, so I gave him one of my batteries since I figured I didn't really need 2 of them. The battery I kept went from 59 mOhms when new, down to 56 mOhms after 1 year, then crept up to 63 mOhms earlier this month (May 2022). Unfortunately, last weekend it spiked to 296 mOhms at the same time that cell #1 went to zero voltage. I know they don't last forever but being a premium make/model, I purchased it expecting to make it to the 4/5 year mark, or at the very least 3, but this one made it just past 2 even though I'm diligent about storage charging (to the point that I datalog resistance/voltage readings).
Three verified-owner reviews cover this 7.6V/2600mAh HV LiPo receiver pack, all listed under the same variant. Reviewers report strong performance, including good servo response and run times that held up through a full day of racing, one of them with heavy electronics loads. Fit is mixed: one reviewer in a Tekno NB48 2.0 added felt pads for side-to-side gaps and trimmed the battery box near the wire exit, another used foam in an Inferno MP10 for a snugger fit, and a third said it fits an MP10 perfectly. One reviewer reported initial internal resistance readings of 96 and 59 mOhms on arrival but did not describe a performance problem from them.
- + Strong servo response on high voltage
- + Long run times, including a full day of racing
- + Fits some buggies well out of the box
- − Side-to-side gaps in some battery boxes
- − Box edge may pinch battery wires
- − Needed foam or padding for a snug fit