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how to charge lipo batteries

When you saw the article title, may be you will laugh: charge lipo battery is so easy. Connect the battery to charger is drone. Is it really easy? Let us to see the professionals give the complete charge lipo battery needing attention.

1. Only use charger designed for lithium polymer/Lion battery. Do not use a NIMH/ NICD/ LIFEPO4/ LEAD ACID charger. If the charger can support different battery types. Be absolutely sure to select the Lithium polymer (Lipo) mode on the charger. Failure to do so may cause a fire, which may result in personal injury and property damage.

2. User should Always charge Batteries in an open area away from flammable materials, liquids and surfaces.

3. Never charge Batteries inside of the model.

4. Never charge batteries below freezing (0°C, 32°F)

5. Never charge Batteries that are hot to the touch (above 100° F). DO NOT handle Batteries until they are cool.

6. User should Always set the charger to the proper cell count and/or voltage listed on Batteries’ labels.

7. User should Always set the charger to the amp charge rate as listed on Batteries’ labels.

The charger should never be set to charge Batteries at a rate greater than 1C (One (1) times the capacity of Batteries in amp hours) unless another C rate is specified in the manufacturer’s product documentation or the rate is preset as part of a specific battery and charger combination. DO NOT alter the charge rate once charging has begun.

8. Never overcharge Batteries beyond the capacity listed on Batteries’ labels.

9. Never overcharge batteries over their rated maximal voltage (4.2V/cell for LiPo).

10. It must choose series charging if two or more battery packs be connected in series for using.

11. Use suitable and good quality chargers, please don’t use cheap and low quality chargers, use the professional Lithium polymer charger to charge the Gens ace & Tattu battery. When charging, please make sure the surroundings is clean, without sundries around. Don’t charge without monitoring. Using lipo sack is suggested when charging to ensure the charging safety. Stop charging timely when the battery is fully charged. Do not connect the charger and the battery for a long time when the battery is fully charged. We will not be responsible for any personal in jury and property lost or any kind accident that caused by improper charging.

source: http://www.genstattu.com/blog/how-to-charge-lipo-batteries/

The type of ESC and Tattu ESC

How many ESC (electronic speed controller) types? Maybe you have been confused by this question. Today we will help you to clearly know more about ESC.

1. ESC types

#1 Brushed and brushless

For base on motor, which can be divided into brushed and brushless. It according to the control signal to adjust the speed of the motor.

For their connection, usually goes like this:
– The ESC input line connected to the battery;
– The output of the ESC line (brushed have two lines, brushless have three lines) connected to the motor;
– ESC signal lines connected to the receiver.

What’s the difference between brushed and brushless ESC?

Brushed Motor and Brushless Motor is like Hub and Switch in Computer Network. Brushed Motor is just a normal motor where it work by direct current/voltage (We only focusing in DC area. NO AC Motor)

#2 Blheli, simonk and kiss firmware

ESC program is divided into open source and not open source, For base on open source firmware, there are 3 main types of firmware that you can get on your ESC, which can be divided into blheli, simonk and kiss firmware.

#3 BEC and UBEC

BEC stands for Battery Elimination Circuit. In practice, this simply means that ESCs with a BEC are able to output a constant voltage and so power the equipment on board your flying platform, such as your receiver, servos or flight controller. Delivers power for your Rx and servos at ~5v (but usually no more than 2A-3A).

UBEC stands for universal BEC or sometimes ultimate BEC, which is typically a switch mode unit which is capable of reducing the voltage from 4s+ packs to the required ~5v, and can deliver as much as 10A to power many, big, digital servos and your Rx.

2. What type of ESC do quadcopters use?

BLHeli is the most common firmware being run on multirotor ESCs today. It’s popularity is pushed further by support for what is called “BLHeli passthrough” built into any CleanFlight based flight controllers. What this allows you to do is to program and update all of your multirotors ESCs from the computer connection to the flight controller.

For BEC or UBEC, you really need to make sure which one you have or are buying if your goal is to have the better switching mode instead of the more problematic linear mode type BEC. Like a lot of things in RC, you have to study the words and numbers a little (types, input voltages, output voltages, ratings, etc.) to make sure you get what you need.

Brushless motors are typically 85 – 90% efficient or more, higher efficiencies for a brushless electric motor, of up to 96.5%, whereas DC motors with brushgear are typically 75 – 80% efficient. Brushless DC motors are commonly used where precise speed control is necessary. So base on the brushless motors, you should have to choose the matching ESC, which also is brushless ESC.

About Tattu 30amp ESC brushless Blheli

Tattu ESC Specifications

– Firmware: BLHeli_S V16.6 A-H-20
– Max continuous load: 30 amps
– Burst Current: 40A / 10sec
– Lipo Cells: 2 to 4 cells
– MCU: SILABS EFM8BB2 48MHz
– BEC: No
– Weight: 3.6g (board) 6.5g (total with wires and connectors)
– PCB size: 26mm L*14.5mm W
– ESC height: 6mm
– Signal wire: 150mm
– Power wire: 100mm

Suppot regular 1-2ms pulse width input, as well as Oneshot125 (125-250us), Oneshot42 (41.7-83.3us), Multshot(5-25us), Dshot150, Dshot 300 and even Dshot600and automatically detected by the ESC. High quality N-FET, half-bridge drive and PCB specialized for cooling, only flashed with BLHeli_S firmware.

Source: http://www.genstattu.com/blog/what-the-type-of-esc/

Do you know about Grepow Company?

Inheriting 20 years of superb battery workmanship, Grepow has been always upholding the idea of high class and quality optimization in production. With outstanding pairing process, safe and reliable raw materials formula, steady and smooth discharge curve, rigorous quality control system, advanced automation equipment, research and development of cutting-edge technology and innovation of workmanship from over 200 people high end professional engineering team, Grepow is the only professional high power battery manufacturer in china that can produce NIMH, Li-PO, LI-FE batteries simultaneously yet maintaining very high standard within the industry. Grepow product is being sold to more than 60 countries around the world. The company has also set up its U.S and German Subsidiary.

The two brands Geshi ACE and Gensace were launched against domestic and overseas RC model markets, and have received a huge amount of responses. They have became very well known brands among RC model fans both domestic and abroad. Geshi ACE and Gensace have been always maintaining the very fine quality and have also gained a very good reputation. With their safe and reliable raw materials formula, advanced production process and rigorous quality control system, Geshi ACE and Gensace have made the batteries that are beloved by many RC model fans. The RC heli/airplane batteries are famous for its high capacity, long flying time, steady performance, outstanding aero shooting results, rarely puffing up and good cycling performance; while the RC cars batteries are showing off its brave, fearless character with its high C rate, super low internal resistance, high explosive strength and strong power during races.

Tattu has been launched few years ago in order to meet the market’s need. It can be separated into Tattu UAV battery and Tattu FPV battery lines. Tattu UAV batteries are industrial made specifically work for UAVs. It overturns the concept of RC models, and it precisely meets the need of UAV flight. It is a high-end UAV battery line that was recognized by the UAV industry once it was launched. Tattu FPV battery line is aiming at providing batteries that are more suitable for FPV racing. Tattu FPV battery come with super high C rate, high explosive power, very strong power drive, safe and reliable features. It was quickly become famous among both domestic and overseas market. It is the first choice and most-recommend to FPV pilots all around the world.

The article source: http://www.genstattu.com/blog/do-you-know-about-grepow-company/

Gensace / Tattu Rline / Testing-Racing Drones

This Review is for who want to buy lipos (due to out of them) or want to try out new lipos. I know most of guys update to these beast.

Tattu R-Line 1300mAh 95C 4S1P lipo battery pack.

What is R-Line? R-Line is a brand new product line specifically designed for professional FPV racing competitions. It’s the selling version of Toppilot batteries. They are more powerful than other graphene batteries. As We All Know Tattu is Known For Their higher capacity, lower internal resistance and lower Operation temperatures. It is Same As Tattu Top-Pilot Lipo. Its In first Stage Version 1.0 Which Performs Very Well. In the future different versions will also be rolled out to meet the needs of different FPV racing competitions.

Specs (Source http://www.genstattu.com)

Brand – Tattu
Capacity(mAh) – 1300
Voltage(V) – 14.8
Discharge Rate (C) – 95
Max Burst discharge Rate (C) – 190
Configuration – 4S1P
Net Weight(卤20g) – 172.6
Length(卤5mm) – 72
Width(卤2mm) – 36
Height(卤2mm) – 32
Connector Type – XT-60
Wire Gauge – AWG12#
Wire Length(mm) – 65
Balancer Connector Type – JST-XHR

At http://www.genstattu.com They are confirming that they are Top Pilot packs, and They are confirming that they are Graphene packs, Which Mean It can Handle More Than 500 cycles(when properly use with care.) so I know we’re already in for a treat with their performance.

I like 12Awg grade wire for some serious amp draws. The Lenght Of Cable is not too short and not too Long. It can be easily useable On 200-240 class quads. It also Comes With Balance connector (protector) which is good to use to save balance lead from props and easily asseable When charging Them. Weight is About 182 (for 1550mah) I honestly use this lipo For race Weight to power ratio is like 180grms of lipo on beast setup.

TESTING

I don’t have ant Testing Equipment But i have other lipos like bonka, turnigy etc To Compare With I Gernally Fly them on a course and checking for battery sag, Internal Resistance,Build Quality.

Build Quality- As the Tattu is Known For good quality lipos they Directly reflects when You feel then In hand.

Checkig Sag & Overall Performance-I Fly Them around 13-15 cycles each last week. during heat i droped cells to 2.9-3.0v.After 1hr when i Reached Home I Charged Them I was Surprised To see no puff . They are True 1550MAh.This means that the 1550mAh genuinely gives you around 1550mAh if you leave around 20% in the pack as you should.They are Cold when They Land.

Internal Resistance-Comparing Them to Other Lipos They Are Very Minimal IR. I got 2-3ohms in Each cell in R-LINE & Got 3-6ohms per cell In Bonka. The Same Charger Was Used to ensure the results were kept fair.

OVERALL THOUGHTS

They are a little heavy Compared to 1500mah Lipos (of course Coz its 1550mah), but provide solid and constant power throughout the pack but the fact the power is still there after 30 seconds Of Serious PunchOuts Thats Why it doesn’t matter. Because of the extra capacity I was expecting them to perform not so good, but I am amazed to say I think they performed better. I had pulled on them in my 2:30 to 3 minute flights.From My First Cycle To Last Cycle They performed same which is incredible.. Now i know the Hype. I Will Definatly Use them In Race..

HAPPY FLYING

The Article Source From To: http://intofpv.com/t-gensace-tattu-rline-testing-racing-drones

Gens ace and Tattu 2016 Christmas RC battery super sales

When you come to shopping malls, you maybe heard Christmas songs, saw the Christmas trees, Santa Claus and snow anywhere. 2016 Christmas will coming on, as usual of year, Christmas will give gift. For the RC hobbyists, do you prepare for your present? NOT? Here have a chance for you, Gens ace and Tattu 2016 Christmas RC battery sale had already started…

Christmas battery sale time: Dec. 8th to 31st
Christmas battery sale participants: All Customers Of Gens ace / Tattu
Christmas battery sale online site:http://www.genstattu.com

1. Special gifts

Most of people exchange gifts on Christmas day, Gens ace & Tattu online shop chosen some hot deals products to give special gifts, just you buy TWO lipo batteries, you will get free accessories, not only that, you also have extra 5% off. It’s great saving, right?

2. Buy more save more

Most of products we provide up to 40% off, and extra 5% off when you buy two. And include that we also provide the Xmas coupon code. $5.00 off when you spend $60.00, code: XMAS5; and $12.00 off when you spend $120.00, code: XMAS12.

3. Lucky draw

If you had subscribed our newsletter or simply leave your Xmas & New year wish and Email to enter the prize draw, you will have a chance to win Free batteries or jump starter. The winners will be announced every week!

The Christmas is the most important Festival, and this year will be passed, you should to buy a better and your favorite Xmas gift for yourself or your families or your friends. It is a chance, you’d better don’t miss. If you like check out please: http://www.genstattu.com/christmas

And finally, Merry Christmas to all friends and have enjoy!

 

Wingsland S6 Pocket Selfie drone with 4K UHD Camera

Since the Wingsland S6 drone held the conference in Beijing on Aug. 18th, (http://www.genstattu.com/blog/the-wingsland-s6-dronecan-avoid-obstacle-handheld-uav/) it has been focus on today. Now, don’t waiting, you can buy it on Genstattu.com shop.

Wingsland S6 pocket selfie drone is a Unique Slim 4K intelligent handheld drone, it is 26.8mm thick only, you can take it on your pocket, it is also a pocket drone. Wingsland S6 is 230g weight, it can be close with you. With its 4k camera and many features you will be able to take the best photos and videos from all different heights and angels.

Let’s know more details about Wingsland S6 pocket selfie drone.

one touch to control take-off or landing

One touch to control take-off or landing, green-hands users will be able to learn how to fly quickly.

When aircraft flies far away, you can use one-key return to home function, aircraft will automatically return to the place it took off and landing. S6 also supports dynamic intelligent return to home function, you can choose aircraft to return to take off place or to the new place where the user is.

S6 is able to record the aircraft direction when it takes off, when you start course lock mode, no matter where is the physical direction of the aircraft nose, users can control aircraft according to the aircraft direction when it takes off.

Outdoor hovering

Built-in GPS and GLONASS dual satellite navigation guarantees precise positioning hover.

Indoor hovering

Infrared and optical flow sensor systems for positioning when GPS signal is not sufficient.

 

Auto follow me

In this mode, aircraft will be like a spirit by your side and shoot automatically. Users can improve auto follow me aerial safety by expanding all modes.

Self-defined flight path

Users can operate aircraft by dragging and self-define aircraft flying actions, it will be more intelligent and interesting.

Versatile APP

Wingsland S6 Drone Fly APP has functions like: image transmission & flying data display, aircraft & camera setting and control, flying emulator and video edit and so on. Wingsland Fly APP provides quite detailed operation tips and function introductions for users.

S6, a safe aircraft

Besides stable control system and reliable power, S6 also supports many safety protection functions and makes your flight safer.

Omnidirectional obstacle avoidance

Propeller guards.

Low voltage auto-landing

Connection lost auto-return

Motor block protection

How much is Wingsland S6 ?

Don’t to wait Wingsland S6? Now if you buy I Wingsland S6 pocket selfie drone on GensTattu online shop, only $399.00, and you will get:

1 x Drone
1 x battery
1 x Charger
8 x Spare Propeller
1 x Screwdriver
1 x Carrying case
1 x 16GB Memory card
1 x USB cable

More information: http://www.genstattu.com/wingsland-s6.html

Gens ace and Tattu Christmas special sale in Europe

The most excited Christmas is coming soon, as we know, The Christmas is the one of most important Festivals. When it comes to Christmas you may be thinking of the Christmas trees, socks and gifts… About the Xmas gifts, Gens ace and Tattu is bring some special gifts to thank for the customers support, we make a great Christmas special sale on www.gensace.de. This special sale is just for Europe.

Gens ace and Tattu 2016 Christmas special sale lasts 31 days. It begins from Dec. 1st and ends to 31st (GMT+1 TIME). Only valid for European market .You can take a big saving and it is the lowest price of the years, at the same time there will be four big sections weekly of this Christmas event that you can take advantages of:

1

1.Flash Sale

From 1st Dec. To 7th Dec.2016, except weekend
Flash Sale on first week. We have chosen some high quality and the most popular products that are the lowest price for you, being on sale for a very limited of time.
Like: http://www.gensace.de/tattu-1300mah-14-8v-75c-4s1p-lipo-battery-pack.html
http://www.gensace.de/tattu-1550mah-14-8v-75c-4s1p-lipo-battery-pack.html

2.Special activities

From 8th Dec. To 14th Dec.2016, except weekend
At the second week, there are special activities. We will make the four special sections including UAV, FPV, HELI and RC CAR sections, One Li-Po battery will be chosen from each section for sale each day. Time is limited, don’t miss it please.

3. Buy more save more

From 15th Dec. To 21th Dec. 2016
Third week, you can save money on our buy more save more event. You can take €10.00 off when you buy €300.00 or €30.00 off when order €600.00 or €1,000.00 order €50.00 off

4.Lucky Draw

From 26th Dec. To 31th Dec,2016
A. For the all individual customers, share or comment our Facebook @GensAceGlobal you will have a chance to win the free gifts.
B. For the new users that registered in December, we will live random draw ten lucky users, to win a big surprise gift.

This is the last time to have a big saving on www.gensace.de this year, the lowest price and mass products have discount, and also have a chance to win the free battery, extra coupon code and have a big surprise gift. Ends on 31st Dec. DON’T MISS. Click it: http://www.gensace.de/christmas or mail to info@genspow.de

Gensace and Tattu official shop Black Friday Battery sale

How time flies! The year of Black Friday is coming on. In that day, most of people will purse their like goods, on offline, the shopping malls make a big discount this year. On online, most of merchants will also take a great save, as the Gens ace and Tattu official online shop, we make a big saving too. And last some days start from now on end to 29th.

We provide a few of ways to saving. Such as just to share and get extra 10%, and have a chance to win the order for free and win the bag of Gens ace and Tattu accessories. For the all lipo battery, we also have up to 40% off. There is a big sale for this year.

1.Share the our Black Friday battery sale section page on Facebook, and you will get extra 10% off.

2.Shop anything now for a chance to win your entire order for Free. And also you will win a bag of Gens ace & Tattu accessories.

3.Black Friday & Cyber Monday battery sale, up to 40% off. It is a big sale of this year.

And this discount will ends November 29th ,while the stock lasts.

For the convenient to choose our hot sale product, we also divide the section of all Gens ace and Tattu lipo batteries. Such as below:
RC Car Lipo Battery Sale Section:
http://www.genstattu.com/black-friday-rc-car-battery.html

RC Airplane & Heli Battery Sale Section:
http://www.genstattu.com/black-friday-rc-airplane-heli-battery.html

Drone/UAV Battery Sale Section:
http://www.genstattu.com/black-friday-drone-uav-battery.html

FPV battery Sale Section:
http://www.genstattu.com/black-friday-fpv-battery.html

You can according to products you want enter the right page. Save your search time. If you are interesting in Gens ace and Tattu, you can click:
http://www.genstattu.com/blackfriday

The Right Way of Using the RC lipo Battery

At present, lipo battery becomes the mainstream of model airplane batteries. In everyday usage, we probably need to use three steps (recharge, discharge and maintaining). Today, I will tell everybody the right way of using the RC lipo battery from three aspects.

Recharge

When you have a lipo battery, you are in no hurry to recharge, but read the battery specification carefully first. Recharge current, voltage and temperature can not be greater than the standard of the specification. What could happen if they are higher than the standard.

1.Using batteries higher than recommended current may cause problems of the battery discharge performance, mechanical property and the safety performance, and may cause heating and leakage, can greatly reduce the battery life.

2. Recharge voltage higher than recommended voltage may cause cell overcharged, usually caused by using in wrong charge way. (Like direct current charge)

3.The recharge temperature here is not the temperature caused by recharging but the environment temperature during the process of recharging. When you find the surface temperature anomalies, you should immediately end the charging.

Discharge

1.Discharge current

Discharge current should not exceed the maximum discharge current specified by the battery. (Formula is “the number of milliampere divided by a thousand and then times the number C” equals the maximum discharge current).

2.Discharge temperature

The battery must be discharged at the range of temperature specified by specification. When the surface temperature exceeds 60 degrees, should stop using, until the battery cool down to the room temperature.

3.Over discharge

Over discharge can cause fatal effect on the battery, so it is best not to make monomer battery voltage lower than 3.7 volts.

Battery storage

Battery should be stored in a cool environment. When you store battery for a long time (more than three months), suggest you put battery in the temperature of 10 to 25 degrees and low temperature, non-corrosive gas. The process of long-term storage, charging and discharging once every three months to keep the battery active, and ensure voltage in the range of 3.8 volts.

Finally, if you don’t mean to use a battery in the short term, be sure to remember that do not charge it fully before you keep it. This is to prevent the battery bulge in the process of preservation. The best maintaining method is storage. The voltage is monomer 3.8 volts

Gens ace most popular RC car Battery 5000mah 2s Lipo

Gens Ace is one of the top rank battery corporations with deep research and manufacturing on NIMH, LI-PO, LI-FE by the effort of 200 professional engineers and technicians with 20 years exquisite battery technology. The Gens Ace brand holds the traditional concept of “excellent quality”, “Optimization”& “Priority” on Sales & Services. All batteries are tailored for various scales of the RC Models such as electronic cars, Nitro cars, Aero planes, vessels and also other models, toys, electric tools, electric bikes, electric autos, digital products etc.

Fits:

The reliable power for 1/8 and 1/10 rc car hobby such as: Losi, Traxxas Slash, HPI Strada XB 1/10 RTR Electric Buggy, Team Associated, Axial, Tamiya, Duratrax, Jammin’, Redcat Racing, Exceed RC, ElectrixRC, Emaxx, Bandit, Rustler version, Kyosho GP 4WD Racing Truck etc.

Features:

1. Quickly Recharged, 5C fast charge capable.
2. Long cycle life with 150 times minimum, up to 200Wh/kg energy density
3. Production in the most strict single cell capacity, voltage, resistance, discharge curve matching process.
4. Superior Japan and Korea Lithium Polymer raw materials.
5. Local after-sales service(located in Dublin, CA)

Specifications:

Minimum Capacity: 5000mAh
Configuration: 2S1P / 7.4V / 2Cells
Discharge Rate: 50C
Max Burst discharge Rate: 100C
Net Weight(±20g): 304g
Dimensions: 138.5mm Length x 46.5mm Width x 25.9mm Height
Connector Type: 4.0mm bullet to Deans
Wire Gauge/Length: 12#/100mm
Charge Plug: JST-XHR
Discharge Plug: 4.0mm bullet to Deans

Original price: $36.99 Now: $26.99

See more about 5000mah 2s lipo battery photos:

Source: http://www.genstattu.com/blog/gens-ace-most-popular-rc-car-battery-5000mah-2s-lipo/