Chinese 10f20 15volt multimeter batteries?

[rt]

Hi all,

Are these 15v 10f20 "multimeter" batteries unique to Chinese brands or are there any western name brands that make them?

http://www.ebay.com/itm/2-10F20-15V-Carbon-Zinc-Battery-220A-B154-DH554-GP220-for-Voltage-meter-/320696870212?pt=LH_DefaultDomain_0&hash=item4aab05e544

Thanks,
rt

[tautech]

They've used similar square ones in AVO meters and others over the years, still available at horrible prices, so when i need something similar I just make a stack on button cells and shrink sleeve them into a pack, maybe with some copper tubing on the ends to meet the same dimensions.

[Fraser]

Duracell and Ever Ready (Energizer) made them for AVO meters but there is less demand for such these days. The battery is a BLR121 (B121). The early AVO batteries were Zinc Carbon but the Duracell and Ever Ready types were IIRC Alkaline and lasted a very long time. They were expensive though.

http://www.petervis.com/electronics%20guides/Avo%208/B121%20Battery.html

The BLR121  is also to be found in some photographic equipment so there remains a need for these to be made. For how long though ?  The AVO is still a NATO supported instrument so a NATO numbered 15V battery remains a requirement for NATO. NSN 6135-99-791-1875

http://www.nsn-now.com/Indexing/ViewDetail.aspx?QString=6135997911875

I attach the MOD spec sheet for the battery.

Rapid still sell an Alkaline version at around £6 and it has the NSN on it so looks to be from a NATO parts supplier 

http://www.rapidonline.com/Electrical-Power/BLR121-15V-Multimeter-Battery-18-0265

I attach the Rapid Data sheet as well.

Just do a search on BLR121 and ensure you buy an Alkaline for long life and low leakage risk.

http://cellpacksolutions.co.uk/online-shop/cell-pack-solutions-avo-8-blr121-multimeter-battery/
http://www.smallbattery.company.org.uk/sbc_a411.htm
http://www.maplin.co.uk/p/keyfob-battery-15v-blr121-1-pack-fm07h
http://www.thexmod.com/item_detail.asp?id=12666
http://www.espspecialbatteries.co.uk/battery/ESP-8-79-815A
http://www.ebay.co.uk/itm/BLR121-BATTERY-FOR-AVO-8-METERS-15V-/260635338455

Alternative that uses batteries available cheaply from the Pound Shop (IIRC £1 for 8 cells) :

http://martin-jones.com/2013/07/31/avometer-8-blr121-15v-battery-replacement/

[rt]

Thanks for the detailed replies 

A stack of coin cells it is so.

rt