Tonsim Factory price smallest battery lithium ion 502030 250mah 3.7v Battery
Maximum Continuous Charge Current
Maximum Continuous Discharge Current
Operation Temperature Range
Storage Temperature Range
Less than 1 year: -20~25℃
less than 3 months: -20~40℃
less than 1 month: -20~50℃
Mechanical characteristics and Safety Test
Vibration Test,Drop Test,Crush,Short Circuit, Impact,Forced Discharge,Nail Pricking
Over charge protection,Over discharge Protection
1.High energy density(300~500WH/L)
2.Long cycle life(500~1000 Cycles)
3.No memory effect
4.Pollution-free (not Contain Cadmium,Lead, Mercury)
5.All polymer lithium batteries' size and capacity can be coustomized
6.Low self discharge
9.Wide application for electronics and industry
10.Give solution for your design
Battery wide range of applications:
•Telecommunication: cellular phone, web phone, interphone, Bluetooth earphone.•Portable office devices: Notebook, PDA, portable electrograph, portable printer. •Video devices: GPS, digital camera, camcorder, portable DVD, portable television, MP3, MP4. •Portable exchange devices: POS, Handy, Fingerprint machine, portable stock machine. •Illuminate devices: miner lamp, searchlight.•Others: toys, models.
You can choose cylindrical battery or flat battery.
1) T/T, Western Union, PayPal
2) Samples and trial order accept PayPal ,T/T & Western Union.
Normal order accept T/T &Western Union.
3) 30% advance deposit after buyer's confirmed payment,
the balance should be paid before shipping when goods are ready.
1) By air or by sea is based on your requirement.
2) Always choose the best reliable delivery agent for you.
We have specialized in this field for many years with rich experience and good reputation.
Our factory has well-equipped modern office ,dust-free workshop, first-class production and testing equipments, mature production lines and practice ataff members.
2. OEM service
We offer custom OEM service, we offer custom banding options for our current product lines.
3. Quality Assurance
We provide mid-to-high-end products with CE,R0HS , FCC certifications.
4. After sale
We offer one year warranty , fast response, professional solution.
Huizhou Tonsim Electronic Co., Ltd. is a subsidiary of Hong Kong Etonsim company.
Advanced technology was introduced to our headquarters in early 2013, and set up Huizhou Etonsim Electronics Co., Ltd in 2013.
Our ET electric unicycle are exported to Taiwan, Hong Kong, Southeast Asia, Middle East, Africa, EU, North America and etc, highly praised by consumers----
splendid reputations in the international market.
1. Welcome standard model and customized model.
2. Welcome li polymer battery pack customized.
3. Size and capacity of li polymer battery can be customized.
4. Offer solution of your design for free.
5. Samples are available for testing.