14.4 v battery pack 2.2ah makita cordless drill battery replacement

- Mar 15, 2017-

Battery Info

  • Model NO.: SNL-14.4V-2.2AH

  • Type:Lithium-Ion Battery Pack

  • Connection Mode:Series and Parallel

  • Rechargeable:Chargeable

  • Discharge Rate:Low Discharge Rate

  • Size:Small

  • Accessories Type:Battery

  • Rated Capacity:2.2ah

  • Standard Voltage:14.8V

  • Usage:Robotic Vacuum Cleaner

  • Electrolyte:Lithium-Ion

  • Trademark: SNL

  • Origin:China

  • Usage: 14 volt cordless drill,dewalt cordless drill battery,cordless drill battery charger,lithium cordless drill,makita cordless drill 14.4 v,ryobi cordless drill battery,dewalt 14 volt cordless drill,dewalt cordless battery,makita cordless drill battery replacement

Basic performance
 Nominal Voltage14.8V
Shipment Voltage21.6-22.5V
 Nominal Capacity(0.2C5A)10.0Ah±5%
 Max Charge Voltage16.8 V
 Discharge Cut-off Voltage15.0V±0.6V
 Max. Charge Current5A
Standard Discharge Current  10A
 Max. Discharge Current15A()
 (Approx.) Weight (Approx.)150±20g
(Max, at 1000Hz.) Cell Impedance≤50mΩ    ()

Charge Method
 Operating Temperature Charge0ºC~45ºC
 StorageWithin a month0ºC~45ºC
Within a month to three months5ºC~40ºC
Within three months to one year10ºC~35ºC
2.1,Electrical Characteristic
NO.ItemStandardTest Method
A)0.2C5A ≥5h
B)5C5A ≥12±1min(Discharge Cut off Voltage 2.5V)
Standard charged under the condition of normal atmospheric pressure and the environmental temperature of 25ºC±5ºC and 45%~75%RH, then rest for 30min and discharge at 0.2C5A,5C5A to the discharge cut-off voltage respectively. Charge/discharge cycle can be conducted for 3 times before meeting the Standards(the same below)
Normal Storage
Discharge Time≥255min
Store for 28 days after standard charged, then discharge
at 0.2C5A to the discharge cut-off voltage.
Cycle Life
Discharge Time≥180min
0.2C5A,30min,300Conduct 0.2C5A cycle for 300 times and measure final capacity.
2.2,Safety Characteristic
NO.ItemStandardTest Method
No fire,No explosion
Standard charge. Charge at 3 C5A to 4.8V, then change to charge with constant voltage till the current less than or equal to 0.01 C5A. Observe the variation of the battery's appearance
Over Discharge
No fire,No explosion
Standard charged. Discharge at 1C5A to discharge cut-off voltage and then connect the positive and negative terminals with a resistor of 10Ω for 14 days.
Short Circuit at Room
No fire
No explosion
,(50m&#937;),10 &#186;C..Standard charged. Keep the battery into a ventilation cabinet and short-circuit the positive and negative terminals directly (general resistance shall be less than or equal to 50m&#937;). Stop the test when the temperature falls to value 10 &#186;C lower than the peak value. Observe the variation of the battery's appearance and temperature.

No fire and
No explosion
Charge at 0.2C,and then leave for 24hrs, The crushing was continued until a force of 3000 lb (13 kN)
No fire
No explosion
Standard charge. Keep the battery connected with a thermocouple and put it on a impaction platform, place a 15.8mm diameter bar across the center of the biggest surface, then let a 9.1kg heavy hammer self fall off to the platform from a height of 610mm. Observe the variation of the battery's appearance.
Hot Oven
No fire,
No explosion
,,,(5 &#186;C&#177;2 &#186;C)/min130 &#186;C&#177;2 &#186;C30Min.
Standard charge. Keep the battery connected with a thermocouple and put it into a circulating air oven. Temperature is raised at a rate of 5 &#186;C&#177;2 &#186;C per minute to a temperature of 130&#186;C&#177;2 &#186;C and remained for 30min at this temperature. Observe the variation of the battery's appearance.
2.3,Environment Adaptation Performance
NO.ItemStandardTest Method

no explosion
Charge at 0.2C,and then leave for 24hrs,check battery before / after cut through battery with &#1060;4mm needle
Static Humidity
Discharge Time &#8805;180min
No remarkable deformation
No smoking\ explosion
Standard charge. Put the battery into a  40&#186;C&#177;2&#186;C and  90% RH chamber for 48h, then get it out and store it for 2h at room temperature. Observe the variation of the battery's appearance and then discharge at 0.2C5A to discharge cut-off voltage, measuring final capacity.
No fire,No explosion
Discharge time&#8805;255min
Standard charge. Then let it self fall off from a height of 1.0m (the lowest height) to a smooth wooden surface. The self fall off should be conducted from every positive and negative direction. Then discharge at0.2C5A to discharge cut-off voltage. Conduct 0.2C5A /0.2C5A cycle for 3 times.
High-low Temperature Discharge
A)60 &#186;C&#8805;285min
B)0 &#186;C&#8805;240min;
C)-10 &#186;C&#8805;180min
A)60 &#186;C&#8805;285min
B)0 &#186;C&#8805;240min;
C)-10 &#186;C&#8805;180min
No fire\explosion
,60&#177;2&#186;C2h,0.2C5A,, 0&#177;2&#186;C/-10&#177;2&#186;C16h,0.2C5A.
Standard charge. Then store for 2h at 60&#177;2&#186;C and discharge at 0.2C5A to discharge cut-off voltage. then standard charge at room temperature and store for 20h according to the order of 0&#177;2 &#186;C/-10&#177;2 &#186;C and discharge at 0.2C5A measuring corresponding discharge capacity.

No remarkable damage,No smoking,No explosion
,,,X,Y,Z10Hz~55Hz30min,1oct/min:A):10Hz~30Hz ;():0.38mm ;B):30Hz~55Hz ;():0.19mm. 
Standard charge. Measure initial status. Equip it to the vibration platform, adjust and prepare the test equipment according to following vibration frequency and relevant swing, doing frequency sweeping from X, Y, Z three directions, each from 10Hz to 55Hz for 30 minutes of recycling, rating of which is 1oct/min:A)vibration frequency:10Hz~30Hz ;Displacement breadth (single swing): 0.38mm ;B) vibration frequency: 30Hz~55Hz ;Displacement breadth(single swing): 0.19mm.
Measure final status after sweeping and Observe the variation of the battery's appearance.
3,PCM parameter PCM
Over charge ProtectionVDET1Over charge detection voltage4.25&#177;0.05V
tVDET1Over charge detection delay time&#8804;2s
VREL1Over charge release voltage4.15&#177;0.05V
Over discharge protectionVDET2Over discharge detection voltage2.5&#177;0.05V
tVDET2Over discharge detection delay time&#8804;1.5s
VREL2Over discharge release voltage3.0&#177;0.1V
Over current protection
IDPOver current detection current200&#177;50A
tVDET3Detection delay time  &#8804;1000ms
 Release conditionCut load
Short protection Detection conditionExterior short circuit
TSHORTDetection delay time800us MAX
 Release conditionCut short circuit
Interior resistanceRDSBMain loop electrify resistanceVC&#8805;10V,RDS&#8804;30m&#937;
Temperature protection Starting temperature70&#177;5&#186;C
Release temperature55&#177;10&#186;C

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