iPowerUS NI-MH 9V (8.4V) 260mAh Specification
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1. Preface This specification is suitable for the
performance of the iPowerUS Ni-MH
rechargeable battery pack.
2. Model NI/MH 8.4V260mAh, min. 200mAh at INSTANT BURST
mode
3. Appearance There shall be no
such defects as discoloration, electrolyte leakege or no voltage. 4. INSTANT
BURST MODE High rate discharge
mode with over (2.0C5) for 30 min discharge, Max. (5.0C5)
12 min. High rate charge
(fast charge) mode with over (1.0C5) for 1 hour or less. 5. Nominal specification |
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Description |
Specification |
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Model |
NI-MH
8.4V260 (IB) |
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Size |
PH120H |
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Dimensions |
Length (mm) |
With sleeve |
25.8±0.4 |
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Width (mm) |
17.1±0.3 |
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Height (mm) |
48.5max |
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Weight(g) |
Approx 48g |
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Nominal Voltage(V) |
8.4 V |
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Internal Impedance(mΩ) |
≤1500 |
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Discharge Cut-off Voltage |
7.0V |
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Ambient temperature |
Charge |
standard |
0℃
to 40℃ |
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quick |
10℃
to 40℃ |
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Discharge |
-10℃
to 50℃ |
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Storage |
＜1 year |
-10℃
to 30℃ |
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＜3 months |
-10℃
to 40℃ |
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6.
Characteristics
Unless otherwise specified,
the standard range of atmospheric conditions as follows:
·Ambient Temperature 20±5℃
· Relative Humidity 65±20%
·Atmospheric Pressure 960±100mbar
·Voltmeters and ammeters to be used in test shall be of grade 0.5 over
Test
Item |
Condition |
Specification |
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1. Charge |
Standard |
Charge at 0.1C5 for 16 hours |
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quick |
Charge at 0.2C5 for 6-7 hours |
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Fast |
Charge at 1.0C5 for 1 hours |
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2. Discharge |
Standard |
At 0.2C5 to 7.0V/cell |
≥ 5hr. |
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Instant Burst |
At 2.0C5 to 7.0V/cell |
≥25 min. |
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3. Discharge Cut-off Voltage |
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7.0V |
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4. Capacity |
Nominal |
Standard Charge/Discharge |
260mAh |
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Fast Charge |
High rate charge – 1C~1.5C (250mA) |
45~60 min. |
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Instant Burst |
High rate Discharge 3C |
200mAh (20min) |
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5. Internal resistance |
After charge at 0.2C5 to for 2.5 hours, rest 5
hours, measured at 1000Hz |
≤1500mΩ |
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6. Cycle life |
By IEC standard: |
Capacity Retention≥65% After 500 cycles |
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By Fast Charge / Instant Brush |
Capacity Retention≥70% After 100 cycles |
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7. Self-Discharge |
The charged battery is stored for 28 days at 20℃±5℃. And the discharge time is measured at Nominal discharge |
≥180minutes |
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8. High Temperature Test |
Store at 40℃、50℃、60℃ for 2 hours then Charge/Discharge |
No leakage |
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9. Low Temperature Test |
Store at 0℃ for 2 hours then
charge/discharge |
No leakage |
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10. Short Circuit Test |
Short circuit after fully charge |
No explode |
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11. Drop Test |
Free fall on the concrete from 1 meter using to 3 axis
after fully charged |
No Break No short-circuit |
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7、Mechanics
With sleeve
8、Charge / Discharge curve (Charge at 0.1C, discharge
at 0.2C)
9、Caution :
9.1 Please charge battery follow the instruction of item 6.1, charge current cannot be more than the limit of item 6.1 and overcharge with high current is harmful. It may cause battery deformation, leak or even open the cover.
9.2 Do
not discharge battery to the condition of lower voltage than 7.0V. Over
discharge may decrease the cycle life and may cause battery deformation, leak
or open the cover.