2016年1月28日星期四

The Difference Between Hardcase Battery and Softcase Battery.

Many people are confused about choosing hard case battery or soft case battery. However,  Whether you are racing or just bashing about, the battery packs you use in your RC vehicles need to be of good quality, yet affordable. As for we GensAce battery, we are specialized in supplying the best rc battery, in the shortest delivery time and at competitive prices.

A coin has two sides. As we often know It is not easy to say that one is better than the other, as people have different experiences and preferences with them. However, there is a way to assist you in making an informed choice by way of comparing the advantages and disadvantages of both:



The soft case is less weight on the cell/battery pack which will allow for a less sluggish RC and will increase the mAh, giving you more power.  Which is very flimsy and can be punctured or torn by various elements that is the concern of lack of durability and safety. However with the soft case, there. The soft pack can also be ordered in larger quantities in terms of cell packing
[IMG] 


The hard pack is secure at all times and is prevented from being damaged as extensively as a soft pack. However, Hardcase lipo battery will decrease the capacity, decreasing power potential. The other disadvantage is that you cannot see to what extent a cell is damaged in the case of a crash.
[IMG] 

Now you will know the choice to choose the hardcase lipo battery or soft case lipo battery. You can choose the battery according to your requirements.

2016年1月21日星期四

Hobby Sales and Warehouse Operator Wanted!

Grepow, Inc. is working as a branch of a China battery factory. and mainly do the product distribution, wholesale and online retail.
Now Grepow move their warehouse from Miami to CA. and need some new members for the New Year sales. Such as Hobby Sales and Warehouse Operator.

Here are the Hobby Sales recruitment,

Hobby Sales Requirements:

-Exemplary communication skills
-Self-starter who can meet deadlines and enjoys working 
-Highly motivated and goal-oriented
-Proven ability to work independently
-Strong attention to detail and follow-up skills
-Knowledge of MS Excel and Office and basic use of voicemail and -Electronic mail systems
-Driving licence required
-Experienced or knowledge with RC hobby or UAV(Unmanned -Aerial Vehicle) drones will be helpful

Hobby Sales Responsibilities:


-Contacting existing customers via telephone and email on a daily basis
-Building customer relationships
-Processing orders set by the customer regularly
-Attending product related trade shows or events
-Consulates with customers on the purchase of products
-Visiting customers

The following is Warehouse Operator recruitment

Warehouse Operator Requirement:

-Possess strong reading comprehension and communication skills.
-Be able to lift boxes weighing up to 50 lbs. 
-Strong computer skills to independently operate warehouse management software, order fulfillment software, and shipping software. 
-Good attitude and be strong team player with the ability to take direction and give direction to peers.

Warehouse Operator Responsibilities: 

-Pick, pack, and ship domestic and international orders (primarily using UPS World Ship and Other shipping software)
-Perform routine clean-ups, including emptying trash and maintaining a clean and orderly work space throughout the day
-Perform shipment receiving and inventory stocking functions 
-Perform cycle counts and physical inventories 
-Check for quality and consistency of product / assist with quality assurance testing
-Continuously improve processes and methods of shipping and warehousing operations

Language request: 
English ( Primary)
mandarin ( helpful)

If you or your friends are interested in the job and wanna join us, please send your resumes to info@genstattu.com
Also you may get a free gift if you recommend the right person for hobby sales or warehouse operator

2016年1月20日星期三

The Successful Relocation of Gens Ace & Tattu Warehouse

Hello everyone!
Congratulation to Gens Ace & Tattu Warehouse successful relocation! Our new warehouse is now at 6681 Sierra Ln Suite F Dublin, CA 94568. Welcome to vist our new warehouse. Now our delivery time go back to normal from 13th,Jan. You can order our batteries smoothly now.
To thanks for all regular and new customer's support! Our Gens Ace prodcut series are all on sale now! If you shop right now you can get savings up to 64% select items (2s/3s/4s/5s/6s), and what's more, if your oder over $89.99, you can get free shipping(It's only for the online customer in the USA,except AK&HI). Get these deals, you can go to this page:http://www.genstattu.com/deal-extreme-gensace.html
Battery sale
Hope you have a great shopping experience whether you decide to do it online or in stores. Any questions or help, please send email to info@genstattu.com or call our US branch at 786-678-3791. Thank you for your kind cooperation and wish you have a happy & prosperous new year!
About Gens ACE & TATTU:
Gens ACE & TATTU is proffession supplier of Lithium polymer battery products in RC & Drone. We are committed to continue to enhance the companys technological and managerial level. With the superior quality and service, our products have quickly occupied a large market and won a good reputation.
Best Regards,
Gens ACE & TATTU

2016年1月7日星期四

Hobby Sales Recruitment from GensAce&Tattu

#‎Tattu‬‪#‎Recruitment‬ New members wanted! As we moved our warehouse from Miami to California!
Here, we decide to get some fresh partners!

Requirements:
1. You Like ‪#‎RCHobby‬, or you have been in this field for long
time.
2. Good communication ability and team work spirit.
3. Be responsible to your work.
4. Master basic rc hobby technology knowledge.


Our new warehouse address: 6681 Sierra Ln Suite F Dublin, CA 94568
Please send your resume to info@genstattu.com We will reply you soon as we receive your CV! LOL
Also you are welcome to recommend person to our company as well as please do a favor to share this Wanted Post!



FPV Racing 180 quad best battery--Tattu1300mah VS. Readymaderc 1300mah

 
Given my newfound liking of 180 quads, I’ve been racking my head about what would be the 180 quad best battery size. This is for a high performance FPV racing 180 mini quad.

I first got into 180 size quads when a friend sold me his XE180 mini quad with Cobra 2204/28 2300kv motors and LittleBee 20A ESCs. The XE180 happens to be a very light quad if built right. Mine is 275 grams without battery. At the time, I had a bunch of Turnigy Nanotech 4S 45c – 90c 1300mah batteries. I didn’t want to spend money on anything else so I decided I’d be flying those. And hey, I’ve had great success with them. I’m certainly not a Nanotech hater. They’ve been great to me.


With the Cobra 2204 2300kv motors and HQ 4×4.5 Bullnose props or HQ 4x4x3 props I’ve been getting 6 minutes of flight time, pushing it hard, and I still come down with around 3.6volts per cell. On my 5 inch quads with the same batteries and motors I usually get 5 minutes and come down at the same voltage. This is with a mix of acro and fast racing lines.

My Nanotechs are starting to age and I’m looking for more performance so I’m finally turning to supposedly better batteries. I’ve been looking at Gens Tattu and ReadyMadeRC’s new performance line of LiPos.

Well, the thing is, I’ve been trying to decide if apart from the 1300mah batteries I should also get a couple of 1000mah packs. This, for the 4 inch quads. The idea is that if I save enough weight, I should be able to get away with smaller 1000mah packs. Here’s how I calculated the math (all 4S batteries):

Weights first
1300mah range

  • Turnigy Nanotech 1.3a 45C: 155g +/-
  • Gens Tattu 1300mah 75C: 155g +/-
  • RMRC 1300mah 60C: 150g +/-

1000mah range


  • Gens Tattu 1050mah 75C: 125g +/-
  • RMRC 1000mah 60C: 108g +/-

The 1000mah batteries would save me around 25g down from the 1300mah packs, with the RMRC 1000mah pack saving around 42g. These are all rough calculations since weights may vary a bit.

Now, I don’t think 25grams will make a whole lot of difference, specially if I start sagging cells due to not having enough discharge rates from the smaller packs. This was my math for discharge calculation:

My target C-rating target calculations are based on an estimated draw at full power of 65A from the Cobra 2300kv motors and 4x4x3 HQ Props.

So. Target discharge rate is 65A.

I then used the standard formula of (Ah x C-rating = Discharge Rating):

1300mah range

  • Turnigy Nanotech 1.3a 45C: 58.5A (Good)
  • Gens Tattu 1300mah 75C: 97.5A (Great)
  • RMRC 1300mah 60C: 78A (Plenty)

I know already that the 1.3Ah packs provide enough power. Not just because of the math, but also because I’ve been flying 1300mah packs.

Then I calculated discharge rates for the 1000mah packs:

1000mah range

  • Gens Tattu 1050mah 75C: 78.75A (Plenty)
  • RMRC 1000mah 60C: 60A (5A short of my target).

Now here’s the thing. I don’t buy into the whole 75C rating thing. I think almost all C-ratings above 60C are over-ratings. In fact, I believe the RMRC batteries rated at 60C offer the same performance as the Tattu LiPos rated at 75C. The Tattus have other nice features and what not, but rating-wise I believe they are around the same. This is from independent tests I’ve looked at online.

What I’m trying to say is that I take those numbers with a grain of salt and only as loose rules of thumb. That said, both the ReadyMadeRC and Gens Tattu packs are known to perform better than Nanotechs which have fallen a bit behind in tech. So I’m on the right path.

However, enter the Shen Drones Tweaker 180 FPV Addiction. After getting hooked on 180 quads from my buddy’s XE180, I decided to build one from scratch. Since I already had the lightweight build, I wanted to build something stronger and likely with better ESCs than the already great LittleBee 20A ESCs.

Flyduino.net released the new KISS 24A ESCs and I ordered 5 of them (one spare) to go on this build.

The Tweaker 180 FPVA is already a heavier frame than the XE180. It’s about 20 grams heavier. Add to that the slightly heavier KISS 24A ESCs and I expect this build to be around 25 to 30 grams heavier than my XE180. That’s where it gets tricky.

I could get the lighter batteries and save that much in battery weight and be more or less equal to the XE180, but with the slight possibility of more voltage sag. Or, I could go with the 1300mah Tattu packs and have enough headroom to upgrade my props from the current HQ 4x4x3 props to the newly released HQ 4×4.5×3 Bullnose props (which by the way, are now in stock at RMRC as of this writing).

It seems like I can’t go wrong either way. If I go with the smaller packs, I equate the weight of the XE180 and if I go with the larger packs I can make up the extra weight with more power from higher pitched props, but I might lose a little in handling. I’m a weight-weenie so this kinda means a lot to me. This all said, reading the forums, it seems that most people flying 2204 motors on 180 frames are flying 1300mah batteries. Only the ones flying 1806 motors or smaller 160 or 150 frames are actually flying 1000mah packs. This is from observations, of course there are exceptions.

Conclusion
So there you have it. Conclusion: The scales tip towards the 1300mah packs for 180 frames on 2204 motors and 1000mah for 180 quads with 1806 motors. But remember, either way you can’t really go wrong. The trade-offs between those two sizes are not big. Hope this story helps make your decision a little easier. AsTattu may be a bettery choice for you!