165:
419:. Combination of fixed and flexible contacts are a better solution, but this is subject to an open circuit upon movement in the direction away from the fixed position; the spring contact compresses and allows the battery to move away from the fixed contact. A flexible contact allows for slight expansion of the cell on discharge, as internal chemicals increase in volume. Flexible contacts with multiple fingers touching the
70:
364:
29:
240:
299:
252:
467:
282:
A battery holder is either a plastic case with the shape of the housing moulded as a compartment or compartments that accepts a battery or batteries, or a separate plastic holder that is mounted with screws, eyelets, glue, double-sided tape, or other means. Battery holders may have a lid to retain
374:
Design of the battery holder requires knowledge of how and where the larger product will be used. Human factors to be considered include ease of battery exchange, age range and physical condition of the intended user. These elements must be taken into account for a design to be successful and are
317:
Some early 1900s battery holders were often no more than a cardboard box with copper contacts. By the 1920s, battery holders used twin metal clips (like fuse holders) to hold the battery in place while making electrical contact. Patent no. 1439429 was granted in Dec. 1922 for an assembly with two
287:. Coiled spring wire or flat tabs that press against the battery terminals are the two most common methods of making the electrical connection inside a holder. External connections on battery holders are usually made by contacts with pins, surface mount feet, solder lugs, or wire leads.
446:
polarity protection technology, which allows batteries to be inserted in either orientation and still operate properly. Prior methods to accomplish this were expensive or caused a passive energy drain on the battery, whereas this solution is purely mechanical and affordable to produce.
457:
must not be completely air-tight since approximately 1 litre of air is required per ampere-hour of discharge per cell. The battery holder may include a valve integrated with the device power switch to allow air to be admitted when the device is switched on.
350:
The electronics industry now uses many surface-mounted lithium battery holders or sockets. CR2/3A, CR1/2AA, and CR123A batteries began in camera applications but expanded into new markets like alarm systems, hand held computers and
379:. A designer must select between a battery holder molded into the product case or made as a separate part. For many products regulations and product safety standards affect the battery holder selection.
640:
582:
290:
Where the battery is expected to last over the life of the product, no holder is necessary, and a tab welded to the battery terminals can be directly soldered to a printed circuit board.
587:
592:
340:
Battery holders developed in parallel with batteries over time; as battery-package sizes shrank so did the holders. In the 1980s, the first circuit board mounting
386:
bodies rated for 80–100 °C (176–212 °F). Lithium coin cell holders are made with high temperature PBT, nylon or LCP bodies because they normally are
547:
404:
are the most important part of the design and require serious consideration. Since batteries are nickel-plated, it is recommended the contacts be
80:
577:
226:
208:
186:
56:
597:
42:
138:
95:
110:
548:"Microsoft Unveils InstaLoad Battery Installation Technology That Allows Batteries to Be Inserted in Either Direction"
412:
between dissimilar metals. Battery contacts may be fixed contacts, flexible contacts, or some combination of the two.
117:
470:
9 volt battery holder with pressure contacts has unequal width in the contact slots for reverse polarity protection
405:
656:
602:
Electronic
Packaging, Microelectronics and Interconnection Dictionary By Charle A. Harper & Martin B. Miller
124:
179:
173:
551:
106:
190:
271:. For dry cells, the holder must also make electrical contact with the battery terminals. For wet cells,
496:
268:
643:
This application note discusses the differences between 2‑point and 4‑point measurements of batteries.
475:
416:
330:
434:. The contact for the anode side can be recessed behind plastic and receive a battery nub common on
48:
409:
401:
367:
326:
480:
283:
and protect the batteries or may be sealed to prevent damage to circuitry and components from
276:
17:
661:
486:
454:
435:
395:
272:
131:
438:. Another method is a plastic channel to receive a battery post or terminal. In July 2010,
347:
holders appeared in the form of patent no. 4487820 by the battery holder manufacturer MPD.
341:
284:
256:
391:
376:
310:; US patent no. 617592 dated March 1898 is for an early metal flashlight that accepted
329:
allowed for the use of small plastic battery holders. These are still common in toys,
650:
491:
387:
322:
318:
spring arm clips, a small switch, and a lamp assembly on the end of connected wires.
593:
Battery
Holders Adapt To Hand Held Device Needs | Medical Design Technology Magazine
239:
298:
427:
allow for movement in multiple directions without losing electrical connection.
344:
69:
363:
307:
543:
443:
439:
311:
251:
588:
Battery
Holders That Take A Battering | Wireless Design & Development
244:
598:
Battery Holder being designed for your design | Medical Design
Magazine
524:
Electrical
Contacts, Principles and Applications by Paul Slade page 155
424:
533:
Electrical
Contacts, Principles and Applications by Paul Slade, p. 751
515:
Electrical
Contacts, Principles and Applications by Paul Slade page 89
466:
87:
431:
352:
583:
Selecting
Battery Holders | Hearst Electronic Products, October 2009
465:
420:
383:
362:
334:
306:
In the late 1800s, patents were issued for consumer products like
297:
250:
238:
635:
578:
Survival of the
Fittest | Electronic Component News, Aug 21 2009
279:, as is found in automobiles or emergency lighting equipment.
158:
63:
22:
430:
Polarity, or reverse battery, protection can be part of the
382:
Most current battery holders are made with polypropylene or
605:
333:, and lighted or blinking items. In 1957, electric wrist
450:
Battery types such as the 9-volt have snap-on contacts.
91:
267:
is one or more compartments or chambers for holding a
415:
Fixed contacts are inexpensive but prone to loss of
370:in twin cell holder with battery hold down strap
483:, an alternative method of connecting batteries
8:
96:introducing citations to additional sources
57:Learn how and when to remove these messages
641:Measuring Batteries using the Right Setup
227:Learn how and when to remove this message
209:Learn how and when to remove this message
394:at 180–240 °C (356–464 °F) or
325:in the 1950s and miniature batteries by
247:battery in holder with pressure contacts
172:This article includes a list of general
86:Relevant discussion may be found on the
508:
398:at 230–300 °C (446–572 °F).
302:Battery holders with pressure contacts
564:Duracell "Zinc Air Tech Bulletin.pdf"
7:
337:gained popularity with the public.
16:For custom battery connectors, see
178:it lacks sufficient corresponding
14:
38:This article has multiple issues.
163:
79:relies largely or entirely on a
68:
27:
550:(Press release). Archived from
46:or discuss these issues on the
1:
623:Batteries In A Portable World
617:Elements of Radio Servicing
606:IEEE Global History Network
345:coin or button cell battery
275:are often connected to the
678:
442:said it hoped to sell its
15:
259:coin cell battery holder
193:more precise citations.
611:Collecting Flashlights
554:on September 22, 2010.
471:
371:
303:
260:
248:
619:by Marcus & Levy.
497:List of battery sizes
469:
417:electrical connection
366:
359:Design considerations
301:
254:
242:
613:by Stuart Schneider.
476:Battery nomenclature
453:Battery holders for
390:mounted and require
321:The introduction of
92:improve this article
636:Battery Holders.org
625:by Isidor Buchmann.
368:Energizer batteries
472:
455:zinc-air batteries
436:alkaline batteries
410:galvanic corrosion
372:
304:
261:
249:
481:Battery terminals
277:battery terminals
237:
236:
229:
219:
218:
211:
157:
156:
142:
61:
18:battery terminals
669:
657:Electric battery
565:
562:
556:
555:
546:(July 1, 2010).
540:
534:
531:
525:
522:
516:
513:
487:Alkaline battery
402:Battery contacts
396:reflow soldering
232:
225:
214:
207:
203:
200:
194:
189:this article by
180:inline citations
167:
166:
159:
152:
149:
143:
141:
107:"Battery holder"
100:
72:
64:
53:
31:
30:
23:
677:
676:
672:
671:
670:
668:
667:
666:
647:
646:
632:
574:
569:
568:
563:
559:
542:
541:
537:
532:
528:
523:
519:
514:
510:
505:
464:
361:
296:
285:battery leakage
233:
222:
221:
220:
215:
204:
198:
195:
185:Please help to
184:
168:
164:
153:
147:
144:
101:
99:
85:
73:
32:
28:
21:
12:
11:
5:
675:
673:
665:
664:
659:
649:
648:
645:
644:
638:
631:
630:External links
628:
627:
626:
620:
614:
608:
603:
600:
595:
590:
585:
580:
573:
570:
567:
566:
557:
535:
526:
517:
507:
506:
504:
501:
500:
499:
494:
489:
484:
478:
463:
460:
392:wave soldering
377:design process
360:
357:
295:
292:
265:battery holder
235:
234:
217:
216:
171:
169:
162:
155:
154:
90:. Please help
76:
74:
67:
62:
36:
35:
33:
26:
13:
10:
9:
6:
4:
3:
2:
674:
663:
660:
658:
655:
654:
652:
642:
639:
637:
634:
633:
629:
624:
621:
618:
615:
612:
609:
607:
604:
601:
599:
596:
594:
591:
589:
586:
584:
581:
579:
576:
575:
571:
561:
558:
553:
549:
545:
539:
536:
530:
527:
521:
518:
512:
509:
502:
498:
495:
493:
492:JST connector
490:
488:
485:
482:
479:
477:
474:
473:
468:
461:
459:
456:
451:
448:
445:
441:
437:
433:
428:
426:
422:
418:
413:
411:
407:
406:nickel-plated
403:
399:
397:
393:
389:
388:circuit board
385:
380:
378:
369:
365:
358:
356:
354:
348:
346:
343:
338:
336:
332:
328:
324:
323:polypropylene
319:
315:
313:
309:
300:
293:
291:
288:
286:
280:
278:
274:
270:
266:
258:
253:
246:
241:
231:
228:
213:
210:
202:
192:
188:
182:
181:
175:
170:
161:
160:
151:
140:
137:
133:
130:
126:
123:
119:
116:
112:
109: –
108:
104:
103:Find sources:
97:
93:
89:
83:
82:
81:single source
77:This article
75:
71:
66:
65:
60:
58:
51:
50:
45:
44:
39:
34:
25:
24:
19:
622:
616:
610:
560:
552:the original
538:
529:
520:
511:
452:
449:
429:
414:
400:
381:
375:part of the
373:
349:
339:
320:
316:
305:
289:
281:
264:
262:
223:
205:
196:
177:
145:
135:
128:
121:
114:
102:
78:
54:
47:
41:
40:Please help
37:
408:to prevent
331:decorations
312:D batteries
308:flashlights
191:introducing
651:Categories
572:References
174:references
148:April 2011
118:newspapers
43:improve it
544:Microsoft
444:InstaLoad
440:Microsoft
199:June 2010
88:talk page
49:talk page
462:See also
327:Eveready
245:alkaline
662:Holders
425:cathode
353:keyfobs
342:lithium
335:watches
294:History
269:battery
257:lithium
187:improve
132:scholar
432:design
273:cables
176:, but
134:
127:
120:
113:
105:
503:Notes
421:anode
384:nylon
255:1987
139:JSTOR
125:books
423:and
111:news
243:An
94:by
653::
355:.
314:.
263:A
52:.
230:)
224:(
212:)
206:(
201:)
197:(
183:.
150:)
146:(
136:·
129:·
122:·
115:·
98:.
84:.
59:)
55:(
20:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
