KPL cells and batteries

Alkaline nickel-cadmium cells of KPL type and blocks of them

Cells of KPL type are alkaline cells with pocket plate electrodes and comply with international standard IEC 60623.

It’s possible to develop and supply battery blocks with the different number of cell and individual layout according to customer’s technical requirements.

Applications

  • back-up power for cellular base stations, wire automatic telephone systems and other telecommunication objects;
  • signaling systems; emergency lighting and electrical power supply;
  • solar and wind power objects;
  • oil and gas complex (recovery, transportation and refining);
  • electric power objects (generation and distribution);
  • power systems of navigation marks;
  • underground;
  • passenger railway carriages;
  • electric locomotives and electric trains;
  • urban electric transport;
  • sea and river ships.

Cells of KPL type

Cell type IEC 60623 designation Nominal capacity, C5 Cell dimensions, mm Cell weight, kg Terminals
W L H with electrolyte without electrolyte
KPL20P KL20P 20 113 59 240 2,2 1,25 M5
KPL45P KL45P 45 113 59 240 2,5 1,8 M5
KPL45 KL45 45 107 55 216 2,8 2,2 M5
KPL60 KL60 60 130 47 352 4,46 3,5 M10
KPL60P KL60P 60 127 62,5 282 3,8 2,95 M14
KPL65 KL65 65 130 47 352 4,46 3,5 M10
KPL70P KL70P 70 127 62,5 282 3,8 2,95 M14
KPL100P KL100P 100 137 78 360 5,7 4,0 M10
KPL110P KL110P 110 137 78 360 6,1 4,3 M10
KPL125P KL125P 125 137 78 360 6,1 4,3 M10
KPL140P KL140P 140 137 113 327 8,3 6,1 M16
KPL160P KL160P 160 137 113 327 8,5 6,5 M16
KPL180P KL180P 180 137 113 327 8,5 6,5 M16
KPL200P KL200P 200 171 118 370 11,4 7,6 M20
KPL220P KL220P 220 171 118 370 11,6 8,0 M20
KPL250P KL250P 250 171 118 370 12,0 8,6 M20
KPL275P KL275P 275 171 118 370 12,0 8,6 M20
KPL300P KL300P 300 172 119 405 13,6 10,4 M20
KPL320P KL320P 320 172 119 405 14,0 11,0 M20
KPL340P KL340P 340 172 119 405 14,0 11,0 M20
KPL375P KL375P 375 171 174 370 17,9 13,6 M20
KPL400P KL400P 400 171 174 370 18,3 14,1 M20
KPL420P KL420P 420 169 174 405 18,3 14,1 M20
KPL450P KL450P 450 169 174 405 19,0 14,9 M20
KPL500P KL500P 500 169 174 405 20,0 15,5 M20

Dimensional drawing of a cell in polymeric box

Dimensional drawing of a cell in metal box

Blocks dimensions

Cell type Block dimensions, mm
W H L / L1
2 3 4 5 6 7 8 9 10
KPL20P 138 250 148 207 266 325 399 458 517 576 635
KPL45P 138 250 148 207 266 325 399 458 517 576 635
KPL45 145 235 170 235 300 365 445 510 576 640 705
KPL60 176 370 148 / 196 202 / 250 256 / 304 310 / 358 382 / 430 436 / 484 490 / 538 544 / 592 598 / 646
KPL60P 150 295 155 218 280 343 420 483 545 608 670
KPL65 176 370 148 / 196 202 / 250 256 / 304 310 / 358 382 / 430 436 / 484 490 / 538 544 / 592 598 / 646
KPL70P 150 295 155 218 280 343 420 483 545 608 670
KPL100P 170 370 192 / 230 270 / 308 348 / 386 426 / 464 522 / 560 600 / 638 678 / 716 756 / 794 834 / 872
KPL110P 170 370 192 / 230 270 / 308 348 / 386 426 / 464 522 / 560 600 / 638 678 / 716 756 / 794 834 / 872
KPL125P 170 370 192 / 230 270 / 308 348 / 386 426 / 464 522 / 560 600 / 638 678 / 716 756 / 794 834 / 872
KPL140P 170 338 262 375 488 601 - - - - -
KPL160P 170 338 262 375 488 601 - - - - -
KPL180P 170 338 262 375 488 601 - - - - -
KPL200P 205 384 270 388 506 624 - - - - -
KPL220P 205 384 270 388 506 624 - - - - -
KPL250P 205 384 270 388 506 624 - - - - -
KPL275P 205 384 270 388 506 624 - - - - -
KPL300P 205 419 272 391 510 629 - - - - -
KPL320P 205 419 272 391 510 629 - - - - -
KPL340P 205 419 272 391 510 629 - - - - -
KPL375P 205 380 382 / 437 556 / 611 - - - - - - -
KPL400P 205 380 382 / 437 556 / 611 - - - - - - -

Dimensional drawing of a battery in metal-plastic carcass

Dimensional drawing of a battery in metal-plastic carcass with front terminals

Recommended charging rates

Stage 1 — Intensive charge
Charging by constant current 0,2 Cn to the voltage 1,6 V on cell.
Stage 2 — Additional charge
Charging by constant voltage till the charging current declines to 0,02 Cn.
For the best cell charging, the charging voltage of Stage 2 should be corrected in accordance with the environmental temperature — if the temperature increases, the voltage should decrease for preventing electrolyte boiling; if the temperature decreases, the charging voltage should increase for charging level increasing. The dependence between charging voltage and environmental temperature is following:
Ucharging. = Uo + 0,003·(25 — tenv.), where
Ucharging. — charging voltage, V/cell,
Uo — initial voltage (1,53 — 1,58 V in accordance with the cell type and operation conditions)
tenv — environmental temperature, °С,
0,003 — temperature coefficient.
Stage 3 — Mode of self-discharge compensation (mode of trickle charge).
Additional charge by constant voltage 1,42 — 1,43 V on cell.
The described three-stage charging rate provides minimum 90 % of level of charge and minimal electrolyte boiling. In such mode the periodicity of cell filling-up is no more frequently than once 6 months.
2. Two-stage charging rate (Stage 1 + stage 3) provides minimum 80 % of level of charge and minimal electrolyte boiling.
3. Two-stage charging rate (Stage 1 + stage 2) provides minimum 90% of level of charge, but there will be a bigger electrolyte boiling compared with the use of Stage 3.
4. One-stage charging rate (Stage 2) provides up to 90 % of level of charge, but the battery will accumulate capacity after emergency discharge for a longer time. Also there will be a bigger electrolyte boiling.
5. One-stage charging rate (Stage 1 without cut-off) provides 90–95 % of level of charge, but there will be a strong electrolyte boiling, for this reason the use of this mode without cut-off is unacceptable.
Before operation it’s recommended to prepare the cell in the following way:
Charge with 2 conditioning cycle: charge by 0,2Сn current during 10 hours for the first cycle and 8 hours for the second cycle, discharge by 0,2Сn current during 4 hours for the first cycle and till 1,0 V for the second cycle. Then charge with control cycle: charge by 0,2Сn current during 8 hours, then rest for 1 hour, discharge by 0,2Сn current till 1,0 V.
Then charge by 0,2Сn current during 10 hours. After charging disconnect a battery from a charger.
Charge the battery, using the direct-current or rectified current power supply with the maximum operating voltage of at least (2*п) V, where п — number of series-connected cells.
Regular operation in floating mode causes the degradation of cell capacity. This process is revertible. For cell recovery it’s recommended if necessary to refresh cells by the mode similar to the mode of placing in operation.