About Payment 
 Shipping & Cost
 FAQ's
 Warranty/Return
 Battery SDS
 Battery Terminology
 Testimonials
 Battery Knowledge
 
Privacy Policy(will update on 12/1/2024)
 Export restrictions

 

Customer Reviews

5 Star Excellence award from Shopper Approved for collecting at least 100 5 star reviews


Security Verified Seal
 

LiFePO4 18650 Rechargeable Cell: 3.2V 1250mAh, 21A Rate, 4Wh - K2 Brand - UN38.3 Passed


Your Price: $8.95
In Stock

Product ID # 4789
Part Number:
LFP-1250KH

Personalizations

* denotes required field

Add Tab ?*

Quantity Discounts

QuantityAmount
5 to 20$8.68
21 to 50$8.50
51 to 100$8.32
101 or more$8.05
Nominal Voltage        Average 3.2 - 3.3 V
Nominal Capacity                 

     1250mAh ( at 0.2C rate, 3.8V cut-off) ,   Energy density:  98.76 wh/kg

Max.Charging current      1.5 A Max.
Max.Discharging current
  • 21A Max. continuous
Dimensions (DxH) (max with tab)      18.3 mm (Max 18.4) x 64.9 mm (Max 65.1)
Weight      40.5 g
Operation Temperature
  •  Charging:    0 - 55 oC
  •  Discharging:  - 20 - 60 oC
Cycle Performance
  •  >2000 (80% of initial capacity at 0.2C rate, IEC Standard) 
  • 2 times more than NiMH  and 10 time more than SLA
Detail Data Sheet   Please click here to download specification.
Smart charger

You can choose Smart Charger (0.7 A) for 3.2V (1 cells) LiFePO4 Battery Pack, 100-240VAC, CE listed to recharge LiFePO4 battery pack

Cautions

 

  • Don't use NiMH or Li-ion smart charger charge LiFePO4 cell/pack.
    • Wrong type of charger used will cause cell to explode.
  • The cell come with removable paper insulator.
    • Please don't remove it while DIY.

  • LiFePO4 battery must be cut-off at 3.8V/cell when charging
  • You must limit discharging rate below Max rate
  • California residents: Warning: Cancer and Reproductive Harm - See Prop 65 Warnings

Related Products

Product Reviews

(0 Ratings, 0 Reviews)
---------------------------
What to consider when designing Lithium Batteries?
---------------------------
Bluetooth Technology for Lithium-ion/LiFePO4 Batteries
---------------------------
UN 38.3 Safety Test

We own a national standard UN38.3 testing lab. We can provide UN38.3 test service to our customer.

If you want to set up your own lab, we also provide UN38.3 & IEC62133 equipments and onsite training. Email us for the quote and lead time.
---------------------------
Lithium Battery Shipping Regulation
---------------------------
Recommendations on How to get ≤30% Rated Capacity for Shipping
---------------------------
Thermal Abuse Test for IEC62133
Mailing Lists