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# YUASA NPC SERIES MAINTENANCE-FREE LEAD-ACID BATTERIES 

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Innovative valve-regulated cyclic specialty “sees NOW available with doubled longer life. 

YUASA BATTERY CO.,LTD. JAPAN 

3 

## The maintenance-free and valve regulated constructions combine with i heavy-duty plates and unique separator systems to make NPC serviciable twice as long as conventional counterparts. 

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## FEATURES 

## 1. Doubled cycle life 

## MOperating temperature range 

NPC operates 500 charge/discharge cycles or twice as many cycles as conventional cycle use batteries at 75% D.O.D. (depth of discharge). 

Charge: —15~50°C (5~122°F) Discharge: —15~50°C (5~122°F) aS Storage: —20~50°C (—4~122°F) ~ Recommended charging: method at 25°C (77°F) Current: Max. 0.25CA Voltage: 14.6~14.8V 

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M@<br>CYCLE SERVICE LIFE IN RELATION TO DEPTH OF<br>DISCHARGE AT 75% DOD<br>**----- End of picture text -----**<br>


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TESTING CONDITIONS : Voltage: 14.6~14.8V<br>Capacity test 0.17CA (FV 10.2V)<br>Life test 0.25CA, 3 hours WMStandard terminal: Bolt/nut<br>CHARGING: 14.6V, 9 HOURS<br>Z MAX. CHARGING CURRENT .<br>3 (AH%) AMBIENT TEMPERATURE [:] : [25°C] 0.25CA [(77°F)] Housing material: ABS resin<br>z 120<br>< Wheelchairs<br>apf IN | UN Golfcit cancarts cancartscarts<br>a ee OA<br>& 0 200 400 600 800 ye<br>NUMBER OF CYCLES AVLawn<br>**----- End of picture text -----**<br>


Wheelchairs cit cancartsGolfcit cancarts cancartscarts OA ye AVLawn mowers “)ae Lights . Toy cars Sprayers Photovoltaics Movable bed Models 

2. Valve-regulated and maintenance-free Battery electrolyte retained solidly in the separator and the innovative gas recombinant system allow minimum gas emittance freeing from maintenance. 

3. Durability for deep discharge use , : . Yuasa’s state-of-the-art plate barrier prevention and the unique‘ separator systems help endure deep . . . discharge use and thus considerably prolonging ' or battery's service life. 

## Robots 

Communications Camping accesories Fishing reel Fish finders Electric tools 

## 4. Minimal self-discharge 

Cyclic use batteries tend to be left discharged after usage Causing plate corrosion leading to shortened life. Self discharge rate of NPC is as small as only O. 1% a day at 20°C as shown in the diagram and thus extends storage period remarkably long. 

Pumps Measuring instruments . ) AGV ~ Magnetic lifts 

## eee 

PERFORMANCE Cc MCYCLE SERVICE LIFE IN RELATION .. TO DEPTH OF DISCHARGE 

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## MSELF-DISCHARGE CHARACTERISTICS 

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< CHARGING: 14.6V, 9 HOURS Pal Sel a<br>z2 aH)1 AMBIENTMAX. CHARGING TEMPERATURE CURRENT: 25°C: 0.28CA(77°F) <oO 75 a — =<br>NUMBER OF CYCLES STORAGE TIME (MONTHS)<br>HDISCHARGE CURRENT VS. DURATION TIME MDISCHARGE CHARACTERISTICS AT<br>VARIOUS CURRENTS (25°C (77°F))<br>.<br>€|) a it [ | [eartery temp. 25°c (77"r| | BATTERYcol yy<br>60 }-—- - = —— +<br>CSSws SON TE ET TT |) ee:  SLSSSA |<br>aS<br>HSS yop x \PStaa:<br>ww |B EAA<br>2&  SSS)10 aN [Xx aN HeeNPCIS-I2 | |e]git XIN\ 4 \| IN<br>A 4t+} +$ Be NT [T] = N -|-<br>w} eeSe BK | |<br>2 | tPa | tT) |NARI 73 100 \ \<br>% HEARS 2 \ |v<br>N /<br>oor /<br>esOO 3.0 |<br>wot)tityTit tit<br>SRL30 2 4 6810 20 40 60 2 4 6 810 20<br>"<br>€° 6 8 10 20 30 40 60 2 3.04 6 8 10 20 Mi o<br>DURATION TIME DISCHARGE TIME<br>**----- End of picture text -----**<br>


## SPECIFICATIONS 

; XK 

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V 20HR wt. Kgs. Terminal<br>181 76 167 6.3<br>175 166 125 9.0<br>197 165 170 14.2<br>**----- End of picture text -----**<br>


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- IMPORTANT HINTS TO PROLONG BATTERY LIFE mM RECOMMENDED CHARGING INSTRUCTIONS . . 

- 1. Constant voltage charging is recommended at 2. 14.6_ to 14.8. volts at 25°C (77°F). Initial charging current: Max. 0.25CA. 

- 3. Always recharge battery after use. 

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MCONSTANT CURRENT, CONSTANT VOLTAGE<br>CHARGING CHARACTERISTICS ®<br>> ;<br>Ei} 24 $$ INITIALCHARGINGCURRENT : 0.25CA<br>0.25-(xca) 125) 20.00“ TEMPERATURE: 25°C (77°F)<br>0.20] 100+ 16.00) =(vs. discharge volume)<br>| ‘omit vokame<br>ost = °F 200<br>60<br>0.10 8.00<br>0<br>‘00s 0<br>charaijarging current<br>0 0 0 4 od<br>CHARGING TIME (HOURS)<br>If battery is overdischarged, initial charging current<br>may be minimal, but will recover normal value in an r<br>hour or so.<br>MAMBIENT TEMPERATURE VS. CAPACITY<br>20100=PT<br>| of 1 r<br>z esa<br>g «mF —| = ——<br>3 ET lee =<br>es = ro]<br>eae<br>he , m —~ L . +.<br>TEMPERATURE (0) @<br>**----- End of picture text -----**<br>


4. Optimum charged volume is 110% of discharged volume. 

   - Optimum charging time: 9 hours Maximum charging time: 20 hours 

5. When using a charger other than the constant voltage type, be alert with charging hours, charging voltage and current. 

6. Try to apply the least internal resistance cable, If battery is overdischarged, initial charging current considering line drop voltage. may be minimal, but will recover normal value in an fuer hour or so. 

## DISCHARGING 

1. Never leave battery in a discharged condition, or at less than 11.8V OCV. notIf leftrestore dischargedfull belowcharge OCVand 11.8V,permanentlybattery maylose service life. 

2. Optimum discharge current is less than ICA. 3. The higher the current,the less the capacity. Permissable discharge current is 3C. If 3C or more current is applied, consult us for 

4. our operating recommendation. If battery is to be stored for a long time, apply supplementary charge accordingi to the tabb **l** e, right. 

- OTHERS MINTERVAL OF SUPPLEMENTAL CHARGE 1. Keep battery in a dry and cool place within the AT VARIOUS STORAGE TEMPERATURES 2. temperatures of —20°C to 50°C (—4 to 122’F) Charging Do not locate near fire. Avoid short circuit. Temp. interva 20°C (68'For les 20~30'¢ (68~86F) 30~407C (86~ 104" 

- Try to avoid usage at 40°C or more to maximize battery life. 

e@ Specifications subject to change without prior notice. 

YUASA BATTERY CO.,LTD. | BATTERY 12-11, HigashiShimbashi 2-Chome TPNCZ:Y Minato-ku, Tokyo, 105, Japan | rant mean CablePhone:: TokyoYUASABATRY(03) 3437-2438TOKYO Telex : YBCTOK AJ29228 Facsimile: Tokyo (03) 3433-7375 GIII 

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Cat. No. NPC-1 (N) Printed in Japan 

91-09-10K